Crosby, Stills, Nash & Young

Crosby, Stills, Nash & Young was an American folk-rock supergroup formed in 1969, bringing together singers and songwriters David Crosby, Stephen Stills, Graham Nash and later Neil Young. They are known for tight multi-part vocal harmonies and a blend of acoustic folk and electric rock arrangements, with material that ranges from intimate personal songs to pieces addressing social and political themes. Their sound commonly features layered acoustic guitars, clear close harmony singing, and moments of prominent electric guitar work, and the group performed intermittently through 2015.