Genesis are an English rock band formed at Charterhouse School, Godalming, Surrey in 1967. The most commercially successful line-up includes keyboardist Tony Banks, guitarist Mike Rutherford and drummer/singer Phil Collins. Other important members were singer Peter Gabriel and guitarist Steve Hackett. The band underwent many changes in musical style over its career, from folk music to progressive rock in the Seventies, before moving towards pop at the end of the decade. They have sold 21.5 million RIAA-certified albums in the US and their worldwide sales are estimated to be between 100 and 130 million.