How about: Led Zepplin; The Grateful Dead; Cream; Jethro Tull; The Moody Blues; Jefferson Airplane; Canned Heat; Crosby, Stills, Nash/ and Young; The Wailers/ Bob Marley and; Grand Funk Railroad; The Kinks; The Animals; The Velvet Underground ummm... there's more, if I think of them I'll let you know.