Toto is an American rock band formed in 1977 in Los Angeles. The band's current lineup consists of Steve Lukather and Joseph Williams, as well as touring musicians, John Pierce, Robert "Sput" Searight, Dominique "Xavier" Taplin, Steve Maggiora and Warren Ham. Toto is known for a musical style that combines elements of pop, rock, soul, funk, progressive rock, hard rock, R&B, blues, and jazz.David Paich and Jeff Porcaro had played together as session musicians on several albums and decided to form a band. David Hungate, Lukather, Steve Porcaro, and Bobby Kimball were recruited before the first album release. The band enjoyed great commercial success in the late 1970s and 1980s, beginning with the band's eponymous debut released in 1978. With the release of the critically acclaimed and commercially successful Toto IV, Toto became one of the best-selling music groups of their era.Widely known for the Top 5 hits "Hold the Line", "Rosanna", and "Africa", the makeup of the group continued to evolve. Hungate left in 1982; Kimball left in 1984, but rejoined the band in 1998, leaving again in 2008. Jeff Porcaro died in 1992 of a heart attack.