Tomo Miličević is a Bosnian-American musician, best known as the lead guitarist of the rock band Thirty Seconds to Mars. Born on September 3, 1979, in Sarajevo, Bosnia and Herzegovina, Miličević moved to the United States during the Bosnian War. He joined Thirty Seconds to Mars in 2001, contributing to their rise in the alternative rock scene. Miličević is noted for his distinctive guitar work, which blends elements of rock, post-hardcore, and electronic music. He played a significant role in the band's critically acclaimed albums, particularly "A Beautiful Lie" (2005) and "This Is War" (2009), both of which showcased his skill in creating atmospheric soundscapes and powerful riffs. His impact extends beyond his guitar work; Miličević is also recognized for his contributions to the band's visual identity and live performances. He departed from Thirty Seconds to Mars in 2018 but remains a respected figure in the rock community. His fusion of genres and commitment to artistic expression has influenced a generation of musicians and fans, solidifying his legacy in contemporary rock music.