Toto, stylized as TOTO, is an American rock band formed in Los Angeles, California, in 1977. Toto combines elements of pop, rock, soul, funk, hard rock, R&B, blues, and jazz. Having released 14 studio albums and sold over 40 million records worldwide, the group has received several Grammy Awards and was inducted into the Musicians Hall of Fame and Museum in 2009.
David Paich and Jeff Porcaro had played together as session musicians on several albums and formed the band; David Hungate, Steve Lukather, Steve Porcaro, and Bobby Kimball were recruited before the release of the band's eponymous debut album in 1978. Led by the Top 5 single "Hold the Line", the album brought the band to mainstream attention, though it was their fourth album Toto IV which brought them global attention. "Africa" topped the Billboard Hot 100, while "Rosanna" reached number 2, helping Toto become one of the best-selling music groups of their era.
Following Toto IV, two of the original members, Hungate and Kimball, departed the band. Hungate was replaced on bass by Mike Porcaro, while Kimball was replaced by a number of different short-term vocalists, the longest serving of which was Joseph Williams.