Question: What instrument did Shannon Leto play in his band Thirty Seconds to Mars?

<P0-S0> American rock band Thirty Seconds to Mars has recorded material for four studio albums. <P0-S1>  The band was formed in Los Angeles, California, in 1998 by brothers Jared and Shannon Leto. <P0-S2>  The duo later expanded to a four-piece when they added guitarist Solon Bixler and bassist Matt Wachter to the line-up. <P0-S3>  After signing a contract with record label Immortal Records in 1998, the band began to work with producers Bob Ezrin and Brian Virtue on their debut album, "30 Seconds to Mars", which was released in August 2002. <P0-S4>  The album produced two singles, "Capricorn (A Brand New Name)" and "Edge of the Earth". <P0-S5>  In early 2003, Bixler left the band due to issues primarily related to touring and was replaced by Tomo Miličević. <P0-S6>  Thirty Seconds to Mars released their second studio album, "A Beautiful Lie", in August 2005. <P0-S7>  The record, produced by Josh Abraham, was preceded by the single "Attack" and spawned two Kerrang! <P0-S8>  Award-winning singles, "The Kill" and "From Yesterday". <P0-S9>  The album's title track, "A Beautiful Lie", was released as the fourth single in selected territories. " <P0-S10> Hunter", a song originally performed by Björk, was covered by the band and added to the track listing of the album. <P0-S11>  In March 2007, Wachter left the group to spend more time with his family and was replaced by Tim Kelleher, performing live only. <SEP> <P1-S0> American rock band Thirty Seconds to Mars has released four studio albums, three extended plays, fourteen singles, four promotional singles, one video album and thirteen music videos. <P1-S1>  The band was formed in Los Angeles, California, in 1998 by brothers Jared Leto and Shannon Leto, with Tomo Miličević joining the band later. <P1-S2>  The band's debut album, "30 Seconds to Mars", was released through Immortal and Virgin Records in August 2002 and peaked at number 107 on the US "Billboard" 200 and number one on the US Top Heatseekers, selling more than two million copies worldwide as of March 2011. <P1-S3>  The album produced two singles, "Capricorn (A Brand New Name)" and "Edge of the Earth". <SEP> <P2-S0> Shannon Leto ( ; born March 9, 1970) is an American musician and songwriter best known as the drummer of rock band Thirty Seconds to Mars. <P2-S1>  He co-founded the group in 1998 in Los Angeles, California, with his younger brother Jared. <P2-S2>  Their debut album, "30 Seconds to Mars" (2002), was released to positive reviews but only to limited success. <P2-S3>  The band achieved worldwide fame with the release of their second album "A Beautiful Lie" (2005). <P2-S4>  Their following releases, "This Is War" (2009) and "Love, Lust, Faith and Dreams" (2013), received further critical and commercial success. <P2-S5>  As of September 2014, the band has sold over 15 million albums worldwide. <SEP> <P3-S0> Thirty Seconds to Mars (commonly stylized as 30 Seconds to Mars) is an American rock band from Los Angeles, California, formed in 1998. <P3-S1>  The band consists of Jared Leto (lead vocals, guitar, bass, keyboards), Shannon Leto (drums, percussion) and Tomo Miličević (lead guitar, bass, violin, keyboards, other instruments).