Deftones is an American alternative metal band from Sacramento, California, U.S. Formed in 1988, the band was founded by Chino Moreno (lead vocals, rhythm guitar), Stephen Carpenter (lead guitar), Abe Cunningham (drums) and Dominic Garcia (bass). During the group's first five years, the band's lineup changed several times, but stabilized in 1993 when Cunningham rejoined the group after his departure in 1990; by this time, Chi Cheng was the band's bassist. The lineup remained stable for fifteen years, with the exception of keyboardist and turntablist Frank Delgado being added in 1999. The band is known as one of the most experimental groups to have come from the alternative metal music scene. They are sometimes dubbed "the Radiohead of metal" by critics.