text: There was "Tom Petty" and "Tom Petty and the Heartbreakers"\nRoger MCGuinn, David Crosby, Gene Clark, Chris Hillman and Mike Clark were in The Byrds.\nCrosby formed "Crosby, Stills & Nash" laster with "Young"\nMCGuinn, Clark and Hillman later came back as a trio and Clark also went on to Firefall.