Crosby, Stills & Nash (CSN) were an American-British-Canadian folk rock supergroup made up of David Crosby, Stephen Stills, and Graham Nash. They were known as Crosby, Stills, Nash & Young (CSNY) when joined by occasional fourth member Neil Young. They were noted for their intricate vocal harmonies, often tumultuous interpersonal relationships, political activism, and lasting influence on US music and culture. Crosby, Stills & Nash were inducted into the Rock and Roll Hall of Fame.
Prior to the formation of CSN, each member of the band had belonged to another prominent group. David Crosby played guitar, sang and wrote songs with the Byrds; Stephen Stills had been a guitarist, keyboardist, vocalist and songwriter in the band Buffalo Springfield (which also featured Neil Young); and Graham Nash had been a guitarist, singer and songwriter with the Hollies.
Due to internal friction, Crosby was dismissed from the Byrds in late 1967. By early 1968, Buffalo Springfield had disintegrated, and after aiding in putting together the band's final album, Stills was unemployed. He and Crosby began meeting informally and jamming. The result of one encounter in Florida on Crosby's schooner was the song "Wooden Ships", composed in collaboration with another guest, Jefferson Airplane's Paul Kantner.
CSNY's music unerringly reflected the tastes and viewpoints of the counterculture in the late 1960s and early 1970s. With protest against the Vietnam War gearing up in 1970, the group (Crosby in particular) made no secret of their political leanings.