Cream were a 1960s British rock supergroup consisting of bassist/vocalist Jack Bruce, guitarist/vocalist Eric Clapton, and drummer Ginger Baker. Their sound was characterised by a hybrid of blues rock, hard rock and psychedelic rock,combining the psychedelia-themed lyrics, Eric Clapton's blues guitar playing, Jack Bruce's voice and prominent bass playing and Ginger Baker's jazz-influenced drumming. The group's third album, Wheels of Fire, was the world's first platinum-selling double album.[Cream are widely regarded as being the world's first successful supergroup. In their career, they sold over 15 million albums worldwide.