Credits

Phil Upchurch: Bass
Steve Winwood: Organ, Piano
Eric Clapton: Lead Guitar
Howlin' Wolf: Harmonica, Acoustic Guitar, Vocals
Bill Wyman: Bass, Cowbell, Shaker
Lafayette Leake: Piano
Hubert Sumlin: Rhythm Guitar
Charlie Watts: Drums, Congas, Percussion
John Simon: Piano
Klaus Voormann: Bass
Ian Stewart: Piano
Peter Amft: Portrait Photography
Vartan : Art Direction
Andy McKaie: Reissue Research, Coordinator
Glyn Johns: Engineer
Joe Miller: Horns
Norman Dayron: Producer
Jordan Sandke: Horns
Jeffrey M. Carp: Harmonica
Don Wilson: Illustrations
Dennis Lansing: Horns
Jo McDermand: Photography