Some rock bands burn bright and disappear within a few years. Others grind through decades of lineup changes, legal wars, and creative reinventions — and somehow come out the other side bigger than ever. That second description fits 30 Seconds to Mars perfectly. Formed in Los Angeles back in 1998, the band has sold over 15 million albums, earned a Guinness World Record for live performances, and produced some of the most recognizable alternative rock anthems of the 2000s and 2010s. Songs like “The Kill,” “Kings and Queens,” and “Closer to the Edge” still get radio play and fill festival crowds worldwide.
But behind the music and the spectacle, the real story has always been about the people. The history of the 30 seconds to mars band members is not just a simple list of names and instruments. It is a tale of brotherhood, artistic ambition, painful goodbyes, and a long-awaited reunion that fans spent years hoping for. From the founding duo of Jared and Shannon Leto, to the early guitarists who came and went, to the beloved Tomo Miličević whose departure in 2018 left a hole in the group’s identity — every musician who stepped into this band left fingerprints on its sound. This article covers all of them in full detail so you get the complete picture, whether you have been following Mars since day one or just discovered them last week.
The Original 30 Seconds to Mars Band Members — How It All Started
The story starts with two brothers from a creative household. Jared Leto and his older brother Shannon grew up surrounded by art. Their family encouraged them to explore music, painting, photography, and just about every form of self-expression you can imagine. After Jared moved to Los Angeles in 1992 to pursue acting — a career that would eventually earn him an Academy Award for his role in Dallas Buyers Club — Shannon followed him west. Between auditions and film shoots, the two kept making music together in whatever spare time they could find. By 1998, they had enough material and enough conviction to officially form a band.
Jared Leto took on the role of lead vocalist, rhythm guitarist, and primary songwriter. He also played bass and keyboards on studio recordings, essentially functioning as the band’s creative architect from the very start. His vision was ambitious. He wanted the band to sound cinematic, layered, and emotionally raw — something that sat between progressive rock and post-grunge without fitting neatly into either box. That vision has guided the group’s direction for nearly three decades now, and it shows in everything from the concept-album storytelling of their debut to the electronic experimentation on later records.
Shannon Leto became the drummer and percussionist, a role he has never once stepped away from. While Jared often gets the spotlight thanks to his Hollywood fame, Shannon has been the rhythmic engine driving every song, every tour, and every album since the beginning. His playing style is heavy and physical. He hits hard and plays with the kind of intensity that anchors even the band’s most atmospheric moments. Together, the Leto brothers form the core that has never changed — no matter who else has walked through the door or walked out of it. Any conversation about the 30 seconds to mars band members has to start with these two, because without them, nothing else exists.
In those earliest days, the lineup also included guitarist Solon Bixler and, briefly, Kevin Drake, who originally auditioned as a bassist but served as a touring guitarist instead. Bixler contributed to the band’s formative sound but eventually departed to co-found a separate project called Great Northern. Drake’s time with the group was even shorter. Neither stayed long enough to appear on a major release, but both played a part in shaping the raw, unpolished energy that defined the band’s first live shows on the L.A. club circuit. They are often forgotten in lists of 30 seconds to mars band members, yet their contributions during the formative club era helped establish the sound the Leto brothers would later refine. The name “Thirty Seconds to Mars” itself came from a phrase in a former Harvard professor’s thesis about the rapid acceleration of technology — an esoteric origin that hinted at the kind of intellectual ambition the Leto brothers were bringing to rock music.
Band Members of 30 Seconds to Mars During Their Rise to Fame
The group truly began to take shape as a recording act when bassist and keyboardist Matt Wachter joined around 2001. Born in Pottsville, Pennsylvania, Wachter picked up the bass almost by accident — he wanted to be in a band, and the band needed someone on bass. His addition completed the roster of 30 seconds to mars band members who would record the self-titled debut album, 30 Seconds to Mars, released in August 2002 through Immortal and Virgin Records. Produced by Bob Ezrin, who had previously worked with Pink Floyd and Kiss, the album was recorded in the isolation of a Wyoming warehouse on 15,000 acres of open countryside. It peaked at number 107 on the Billboard 200 and reached number one on the US Top Heatseekers chart, eventually selling two million copies worldwide. The single “Capricorn (A Brand New Name)” cracked the top ten on the UK Rock Chart. Critics praised the album for carving out a unique space in a crowded rock landscape, even if commercial success was slow to build.
The real breakthrough came with the arrival of guitarist Tomo Miličević in 2003. Born in Sarajevo and raised in Troy, Michigan, Tomo was a classically trained violinist before heavy metal pulled him toward the guitar. His influences ran deep and wide — from Pantera and Metallica to jazz virtuosos like Stéphane Grappelli and Paco de Lucía. That range made him more than just a lead guitarist. He brought textures, layers, and instrumental versatility that pushed the band’s sound into new territory. With Tomo on board, the group hit the road alongside acts like Chevelle and Our Lady Peace, building a loyal following through relentless touring.
The payoff arrived in 2005 with A Beautiful Lie, the band’s second album. Produced by Josh Abraham and recorded across four continents to accommodate Jared’s film schedule, it was a dramatically different record from the debut. Where the first album hid behind conceptual layers, A Beautiful Lie was personal, emotional, and direct. The single “The Kill” made history as the longest-running song on the Modern Rock Billboard chart, staying on for an entire year before a new rule forced its removal. “From Yesterday” followed and became the first American rock video ever filmed entirely in China. The album went multi-platinum worldwide, selling over 3.5 million copies and transforming the group from an underground act into arena headliners. This was the era that cemented the classic trio — Jared, Shannon, and Tomo — as the lineup fans think of when they picture the band. Understanding this period is essential for anyone researching 30 seconds to mars band members, because it represents the creative peak that defined the group’s identity for years to come.
When a Band Member Leaves — Key Departures and Their Impact on 30 Seconds to Mars
Every band faces turnover, but few have handled it quite the way Mars has. The first major departure came in March 2007, when Matt Wachter left to spend more time with his growing family. At his final show in El Paso, Texas, Jared dedicated the song “R-Evolve” to him — a respectful farewell that reflected the good terms on which they parted. Wachter moved on to join Angels & Airwaves, replacing their outgoing bassist Ryan Sinn, and continued making music for several more years before stepping back from professional touring entirely.
Rather than finding a permanent replacement, the band made a deliberate choice. They would remain a three-piece — Jared, Shannon, and Tomo — as official members, while bringing in session musicians for live bass duties. Tim Kelleher was the first to fill that spot, stepping in immediately after Wachter’s exit. Later, Matt McJunkins, best known for his work with A Perfect Circle, took over touring bass responsibilities around 2011. This approach gave the group flexibility and kept the spotlight on the core trio, but it also meant that the band’s official membership shrank even as their audience grew.
The period following Wachter’s departure was anything but calm. While recording This Is War (2009), the band found itself locked in a $30 million lawsuit with their label, Virgin/EMI. The label claimed the group owed three more albums under their contract. The legal battle consumed nearly a year before a settlement was reached in July 2009. Jared later documented the ordeal in the film Artifact, which won the People’s Choice Documentary Award at the Toronto International Film Festival. Through it all, the remaining 30 seconds to mars band members stuck together and delivered one of their most ambitious records, featuring fan-favorite tracks like “Kings and Queens,” “This Is War,” and “Closer to the Edge.”
The bigger shock came a decade later. During the 2018 Monolith Tour in support of the album America, the band announced that Tomo Miličević was taking a break from touring for personal reasons. Fans sensed something was off — Tomo had been absent from promotional materials and social media activity around the new record. In June 2018, he confirmed what many feared. In a heartfelt statement, he wrote that leaving was “incredibly painful” because of his deep attachment to the band, but that it was “the best thing for me in my life and also for the band.” He thanked Jared and Shannon for the privilege of sharing their dream and urged fans not to feel divided about his decision, insisting it was a positive step for everyone involved.
The Leto brothers did not publicly comment on the departure at the time. They simply continued as a duo, which remains the official configuration to this day. The list of 30 seconds to mars band members had officially shrunk to just two names. With Tomo gone, the group leaned even further into electronic production, synthesizers, and studio-driven arrangements. The shift was already visible on Love, Lust, Faith and Dreams (2013), which Jared self-produced alongside Steve Lillywhite, and it deepened on America (2018) and the most recent album, It’s the End of the World but It’s a Beautiful Day (2023). Fewer fixed instrumentalists meant more freedom to experiment — but it also meant losing the organic guitar-driven energy that fans associated with the classic lineup.
30 Seconds to Mars Band Members Details — The Touring Musicians Who Kept the Show Alive
Official membership only tells part of the story. On any given night during a 30 Seconds to Mars concert, the stage has been filled with talented musicians who never held the title of “official member” but were absolutely essential to making the live show work. These players deserve recognition in any honest account of the 30 seconds to mars band members history.
Tim Kelleher was the first session bassist to step in after Wachter’s departure in 2007, and he held the role through the This Is War touring cycle. Matt McJunkins followed, bringing his experience from A Perfect Circle and lending a heavier edge to the live sound starting around 2011. Braxton Olita was added as a touring keyboardist in 2009, a move that allowed the band to reproduce the dense, layered textures of their studio recordings on stage. More recently, Jamie Reed played bass at the August 2025 Kia Forum show that celebrated the 20th anniversary of A Beautiful Lie. Each of these musicians contributed something valuable. Without them, many of the songs fans love most simply would not have sounded right in a live setting.
The reason the Leto brothers remained the only permanent fixtures is straightforward. Jared’s role extends far beyond singing. He writes the songs, directs the music videos, oversees the visual branding, and has produced or co-produced most of the band’s records since 2013. That level of creative control makes it difficult for anyone else to occupy equal ground within the project. Shannon, meanwhile, has never wavered. His partnership with Jared runs deeper than music — it is a family bond that no professional disagreement could fracture. The result is a band that functions less like a traditional democratic rock group and more like a creative studio led by two brothers who happen to invite brilliant collaborators along for the ride.
The 2025–2027 Reunion — Tomo Returns to the Stage
For seven years after Tomo’s departure, fans held onto the hope that he would one day come back. That hope was rewarded on August 16, 2025, when Tomo Miličević walked onto the stage at the Kia Forum in Los Angeles to join the band for a special show celebrating the 20th anniversary of A Beautiful Lie. It was his first appearance with the group since March 2018 — over seven years away. For a fanbase that had memorized every detail about the 30 seconds to mars band members, this was the moment they had been waiting for. He played a handful of songs from the album, and by all accounts, the reaction inside the arena was electric. Longtime fans described it as a full-circle moment, the kind of thing that reminds you why you fell in love with a band in the first place.
Then, in April 2026, the announcement many had been waiting for finally arrived. The band revealed “A Beautiful Lie vs This Is War,” a 17-date European and UK arena tour launching on April 6, 2027 in Lisbon and wrapping up on May 1 in Dublin. The key detail was the one fans had been praying for — Tomo Miličević confirmed as part of the lineup for the entire run. The classic three-piece would be reunited on stage, performing exclusively from the two albums that defined the band’s commercial peak. Stops include Madrid, Valencia, Milan, Frankfurt, Berlin, Vienna, Antwerp, Amsterdam, Paris, London’s O2 Arena, and Manchester’s Co-Op Live.
The setlists promise anthems like “The Kill,” “From Yesterday,” “Attack,” “Kings and Queens,” “This Is War,” and “Closer to the Edge” — songs that resonate just as powerfully today as they did when they first dropped. For anyone looking to see the most beloved configuration of 30 seconds to mars band members on stage together, this tour is the opportunity that may not come around again. While the official lineup remains the Leto brothers, Tomo’s return signals that the door between past and present is wide open. Whether this leads to a permanent reunion or remains a celebratory one-off remains to be seen, but either way, it has reinvigorated a fanbase that spans generations.
The Lasting Legacy of the 30 Seconds to Mars Band Members
When you step back and look at the full picture, the legacy of this band is built on more than hit singles and sold-out arenas. It is built on the people who made the music happen. Jared Leto brought the vision, the ambition, and the willingness to tear everything down and rebuild it from album to album. Shannon Leto provided the unshakeable foundation — the one member who has never missed a beat, literally or figuratively. Matt Wachter helped build the platform during the early years when nobody outside of L.A. rock clubs knew who they were. Tomo Miličević elevated the sound during the golden era and gave the band the musical range that turned good songs into great ones. And the touring musicians — Kelleher, McJunkins, Olita, Reed, and others — kept the machine running night after night across hundreds of shows worldwide.
Over 15 million albums sold. A Guinness World Record for 300 live shows during a single album cycle. Six studio albums spanning more than two decades. A fan community known as the Echelon that stretches across every continent. These numbers and milestones belong to every one of the 30 seconds to mars band members who ever picked up an instrument or sat behind a drum kit under the Mars banner. The upcoming 2027 reunion tour is proof that the bonds formed during those peak years still carry real weight — not just for the fans, but for the musicians themselves. Whether you have followed the group since 2002 or just stumbled across “The Kill” on a streaming playlist last month, understanding the people behind the music makes every song hit a little differently.
Frequently Asked Questions
FAQ 1: Who are the current members of 30 Seconds to Mars?
As of 2026, 30 Seconds to Mars officially consists of two members — brothers Jared Leto (lead vocals, guitar, keyboards) and Shannon Leto (drums, percussion). They have operated as a duo since guitarist Tomo Miličević departed in June 2018, though live touring musicians are brought in to fill out the sound on stage.
FAQ 2: Why did Tomo Miličević leave 30 Seconds to Mars?
Tomo Miličević announced his departure from 30 Seconds to Mars in June 2018, citing personal reasons. He described the decision as “incredibly painful” but insisted it was “the best thing for me in my life and also for the band.” He left on good terms and publicly thanked Jared and Shannon Leto for the experience.
FAQ 3: Are Jared Leto and Shannon Leto brothers?
Yes, Jared and Shannon Leto are biological brothers. Shannon is the older sibling, born on March 9, 1970, while Jared was born on December 26, 1971. They grew up together in Bossier City, Louisiana, and co-founded 30 Seconds to Mars in 1998 in Los Angeles.
FAQ 4: Is Tomo Miličević coming back to 30 Seconds to Mars?
Tomo Miličević is confirmed to rejoin 30 Seconds to Mars for their 2027 “A Beautiful Lie vs This Is War” European tour, a 17-date arena run starting in April 2027. He also reunited with the band on stage at the Kia Forum in August 2025 for the 20th anniversary of A Beautiful Lie. Whether this becomes a permanent reunion has not been officially confirmed.
FAQ 5: How many members does 30 Seconds to Mars have?
30 Seconds to Mars currently has two official members — Jared Leto and Shannon Leto. At its peak, the band was a three-piece with guitarist Tomo Miličević, who was part of the group from 2003 until 2018. Earlier lineups also included bassist Matt Wachter and guitarist Solon Bixler.
FAQ 6: What happened to the bassist of 30 Seconds to Mars?
Original bassist Matt Wachter left 30 Seconds to Mars in March 2007 to spend more time with his family. He later joined Angels & Airwaves as their bassist. After Wachter’s exit, the band chose not to replace him with a permanent member and instead used session bassists like Tim Kelleher and Matt McJunkins for live shows.
FAQ 7: What genre of music is 30 Seconds to Mars?
30 Seconds to Mars blends several genres, including alternative rock, progressive rock, post-grunge, electronic rock, and space rock. Their earlier albums lean more toward guitar-driven rock, while later releases like America (2018) and It’s the End of the World but It’s a Beautiful Day (2023) incorporate heavier electronic and synth-pop elements.
FAQ 8: What instruments does Jared Leto play in 30 Seconds to Mars?
Jared Leto is a multi-instrumentalist within the band. He handles lead vocals, rhythm guitar, bass guitar, and keyboards on studio recordings. Beyond performing, he is also the primary songwriter, creative director, music video director (under the pseudonym Bartholomew Cubbins), and has produced or co-produced most of the band’s albums since 2013.
FAQ 9: How many albums has 30 Seconds to Mars released?
30 Seconds to Mars has released six studio albums: 30 Seconds to Mars (2002), A Beautiful Lie (2005), This Is War (2009), Love, Lust, Faith and Dreams (2013), America (2018), and It’s the End of the World but It’s a Beautiful Day (2023). The band has also released three extended plays and a documentary film called Artifact (2012).
FAQ 10: What is the biggest hit song by 30 Seconds to Mars?
“The Kill (Bury Me)” from the 2005 album A Beautiful Lie is widely regarded as the band’s biggest and most iconic song. It set a record as the longest-running hit on the Billboard Modern Rock chart, staying for over 50 weeks. Other major hits include “Kings and Queens,” “From Yesterday,” and “Closer to the Edge.”
FAQ 11: Is 30 Seconds to Mars still together in 2026?
Yes, 30 Seconds to Mars is still active as of 2026. Brothers Jared and Shannon Leto continue to perform and record music together. The band has also announced a 2027 European reunion tour with former guitarist Tomo Miličević, indicating they are not only active but expanding their live presence.
FAQ 12: Where is Tomo Miličević from?
Tomo Miličević was born on September 3, 1979, in Sarajevo, Bosnia and Herzegovina (then part of Yugoslavia). His family emigrated to the United States when he was a young child, and he grew up in Troy, Michigan, where he became involved in the local heavy metal music scene before eventually joining 30 Seconds to Mars in 2003.
FAQ 13: Who was the first guitarist of 30 Seconds to Mars?
The first guitarist of 30 Seconds to Mars was Solon Bixler, who joined the band during its earliest days in the late 1990s. Bixler departed before the band achieved mainstream success and went on to co-found the indie rock band Great Northern. Kevin Drake also briefly served as a touring guitarist after originally auditioning as a bassist.
FAQ 14: What is the Echelon in 30 Seconds to Mars?
The Echelon is the official name for the dedicated global fanbase and street team of 30 Seconds to Mars. Members of the Echelon promote shows, request songs on radio stations, maintain fan websites, and participate in community events organized by the band. The name also appears as a song title on the band’s 2002 debut album.
FAQ 15: How many copies has 30 Seconds to Mars sold worldwide?
As of September 2014, 30 Seconds to Mars had sold over 15 million albums worldwide. The album A Beautiful Lie alone sold more than 4 million copies, and This Is War achieved multi-platinum certifications in several countries. Total sales have continued to grow since then through digital and streaming platforms.
FAQ 16: Does 30 Seconds to Mars have a Guinness World Record?
Yes, 30 Seconds to Mars holds a Guinness World Record for the most live shows performed during a single album cycle. The band played 300 concerts on their Into the Wild Tour in support of the album This Is War. The milestone 300th show took place on December 7, 2011, at the Hammerstein Ballroom in New York City.
FAQ 17: What is the $30 million lawsuit involving 30 Seconds to Mars?
In August 2008, EMI/Virgin Records filed a $30 million breach-of-contract lawsuit against 30 Seconds to Mars, claiming the band failed to deliver three albums as required under their 1999 contract. The band fought back using California’s De Havilland Law, which limits personal service contracts to seven years. The case was settled in April 2009, and the band signed a new deal with the label.
FAQ 18: Who plays bass for 30 Seconds to Mars on tour?
Since Matt Wachter’s departure in 2007, 30 Seconds to Mars has relied on touring session bassists rather than an official permanent bass player. Tim Kelleher filled the role from 2007, followed by Matt McJunkins (also of A Perfect Circle) around 2011. Most recently, Jamie Reed played bass at the band’s 2025 Kia Forum anniversary show.
FAQ 19: What does the name “30 Seconds to Mars” mean?
The band name was inspired by a section title from a thesis by a former Harvard professor that discussed the rapid acceleration of technology and its relationship to human life. Jared Leto described the name as a metaphor for the future, saying it represents “the fact that we’re so close to something that’s not a tangible idea.” The connection to Mars as the Roman God of War adds an additional layer of meaning.
FAQ 20: Has Shannon Leto ever left 30 Seconds to Mars?
No, Shannon Leto has never left or taken a break from 30 Seconds to Mars. He has been the band’s drummer since its founding in 1998 and has performed on every studio album and tour in the band’s history. Along with his brother Jared, he is one of only two members who have remained with the group without interruption.
FAQ 21: What awards has 30 Seconds to Mars won?
30 Seconds to Mars has won over 80 awards from more than 146 nominations. Notable wins include multiple MTV Europe Music Awards for Best Rock (2007, 2010, 2011), Kerrang! Awards for Best Single (“The Kill” in 2007 and “From Yesterday” in 2008), and the People’s Choice Documentary Award at TIFF for the film Artifact. The band also holds a Guinness World Record.
FAQ 22: Is Jared Leto the lead singer and an actor at the same time?
Yes, Jared Leto simultaneously maintains careers as the lead singer of 30 Seconds to Mars and as a Hollywood actor. He won an Academy Award for Best Supporting Actor for Dallas Buyers Club (2013) and has appeared in films such as Fight Club, Requiem for a Dream, and Blade Runner 2049. In the band’s early days, he deliberately refused to use his acting fame to promote the group.
FAQ 23: When is the 30 Seconds to Mars reunion tour with Tomo in 2027?
The “A Beautiful Lie vs This Is War” reunion tour with Tomo Miličević runs from April 6 to May 1, 2027, across 17 European and UK cities. Stops include Lisbon, Madrid, Milan, Frankfurt, Berlin, Vienna, Amsterdam, Paris, London (The O2), Manchester (Co-Op Live), and Dublin. Setlists will exclusively feature songs from the 2005 and 2009 albums.
FAQ 24: How did 30 Seconds to Mars change after losing band members?
Each major departure pushed 30 Seconds to Mars in a different sonic direction. After Matt Wachter left in 2007, the band became a guitar-focused three-piece and made their most experimental album, This Is War. After Tomo Miličević departed in 2018, the Leto brothers shifted further toward electronic production and synth-driven pop rock on albums like It’s the End of the World but It’s a Beautiful Day (2023), moving away from the guitar-heavy sound that defined their peak years.
