Credits

Bo Diddley: Guitar, Vocals
Muddy Waters: Guitar, Vocals
Buddy Guy: Bass
Otis Spann: Piano
Howlin' Wolf: Harmonica, Acoustic Guitar, Vocals
Hubert Sumlin: Guitar
Richard Meltzer: Original Liner Notes
Andy McKaie: Liner Notes, Reissue Coordination
Robert Stoughton: Transfers
Clifton James: Drums
Cookie Vee: Tambourine, Vocals