Credits

Johnny Winter: Guitar, Producer, Mixing, Slide Guitar
Muddy Waters: Guitar, Slide Guitar, Vocals
Big Walter Horton: Harp
Pinetop Perkins: Piano
Bob Margolin: Bass
Jerry Portnoy: Harp
Jimmy Rogers: Guitar
Greg Calbi: Mastering
Paula Scher: Design
Willie "Big Eyes" Smith: Drums
Dave Still: Engineer, Mixing