Question: Who was a producer who produced albums for both rock bands Juke Karten and Thirty Seconds to Mars?

<P0-S0> "Conquistador" is a song by American rock band Thirty Seconds to Mars, featured on their fourth studio album "Love, Lust, Faith and Dreams" (2013). <P0-S1>  Written by lead vocalist Jared Leto, who also produced the song with Steve Lillywhite, "Conquistador" features combative lyrics and call-and-response verses. <P0-S2>  Described as the "wild child" of the album, it is an alternative rock song with influences and elements from electronica. <P0-S3>  Thirty Seconds to Mars premiered the song on Vevo on May 2, 2013, two weeks before the album's release. <SEP> <P1-S0> American rock band Thirty Seconds to Mars has recorded material for four studio albums. <P1-S1>  The band was formed in Los Angeles, California, in 1998 by brothers Jared and Shannon Leto. <P1-S2>  The duo later expanded to a four-piece when they added guitarist Solon Bixler and bassist Matt Wachter to the line-up. <P1-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. <P1-S4>  The album produced two singles, "Capricorn (A Brand New Name)" and "Edge of the Earth". <P1-S5>  In early 2003, Bixler left the band due to issues primarily related to touring and was replaced by Tomo Miličević. <P1-S6>  Thirty Seconds to Mars released their second studio album, "A Beautiful Lie", in August 2005. <P1-S7>  The record, produced by Josh Abraham, was preceded by the single "Attack" and spawned two Kerrang! <P1-S8>  Award-winning singles, "The Kill" and "From Yesterday". <P1-S9>  The album's title track, "A Beautiful Lie", was released as the fourth single in selected territories. " <P1-S10> Hunter", a song originally performed by Björk, was covered by the band and added to the track listing of the album. <P1-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> <P2-S0> Levolution is the second studio album by Australian rock band Juke Kartel, and the first American released album. <P2-S1>  Produced by Brian Virtue (Jane's Addiction, Velvet Revolver, Thirty Seconds to Mars, Chevelle) and Rick Parashar (Pearl Jam, Alice in Chains, 3 Doors Down, Nickelback), the album features a half-dozen freshly penned tracks and six from the band's 2009 Australian CD, Nowhere Left to Hide, remixed by Dan Korneff (My Chemical Romance, Cavo). <P2-S2>  Levolution was released to the Australian public through Carved Records on 20 August 2010, and later released to the United States on 28 September 2010. <P2-S3>  With its overarching theme of personal growth and "the journey we’re all on", says vocalist/lyricist Toby Rand, Levolution finds musical parity in its strong hooks, multi-textured instrumentals and passionate vocals. <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).