Creedence Clearwater Revival (often referred to as Creedence or CCR) was an American rock band active in the late 1960s and early 1970s which consisted of lead vocalist, lead guitarist, and primary songwriter John Fogerty, his brother rhythm guitarist Tom Fogerty, bassist Stu Cook, and drummer Doug Clifford. These members played together since 1959, first as The Blue Velvets, then as The Golliwogs. Their musical style encompassed the roots rock, swamp rock, and blues rock genres. They played in a Southern rock style, despite their San Francisco Bay Area origin, with lyrics about bayous, catfish, the Mississippi River, and other popular elements of Southern United States iconography, as well as political and socially conscious lyrics about topics including the Vietnam War.