Exodus is an American thrash metal band from Richmond, California. Formed in 1979, the group originally included lead vocalist Keith Stewart, guitarists Kirk Hammett and Tim Agnello, and drummer Tom Hunting, who later added guitarist Mikey B, who left after six months. Stewart left later, with Hunting handling lead vocal duties for a short period. Agnello also left shortly after, leaving the band to continue as a trio. Melson was replaced by Jeff Andrews around the same time. Gary Holt joined as Agnello's replacement in 1981. In 1982, the band added vocalist Paul Baloff, who performed on its first three-track demo the same year. The following April, Hammett left Exodus to join Metallica, with Rick Hunolt quickly brought in to replace him. Andrews later left to form death metal band Possess