Album DescriptionAfter the domination of British acts during the Sixties, it seemed as if the American rock empire was striking back when they unleashed Electric Flag, Moby Grape, Blood Sweat & Tears, Spirit and the proudly named United States Of America. The word ?underground? seems almost a misnomer, as many of the acts on this superb 10-track compilation are indeed household names - notably Bob Dylan, Janis Joplin and Leonard Cohen. Electric Flag?s powerful ?Killing Floor? and Big Brother & The Holding Company?s ?Piece Of My Heart? are among the high spots of this legendary 1970 compilation album.