Creedence Clearwater Revival is an American band known for its southern"swamp rock" style - despite its San Francisco Bay origins. Formed in 1967, the lineup included lead vocalist and guitarist John Fogerty, his brother and rhythm guitarist Tom Fogerty, bassist Stu Cook, and drummer Doug Clifford. The band wrote lyrics about bayous, catfish, and the Mississippi River, but they were also politically active during the Vietnam War era.