Registrato nel 1976, al Paul's Mall di Boston. Muddy Waters e la sua band (Pinetop Perkins, Luther Guitar Jr Johnson, Bob Margolin, Calvin Fuzz Jones, Jerry Portnoy e Willie Smith). Solido blues elettrico, suonato con vigore, con classici e standard che si susseguono senza sosta. Baby Please Don't Go, Got My Mojo Working, Kansas City, Hoochie Coochie Man, Caldonia, Mannish Boy etc.
Digitally remastered from the Original Chess Records masters. Tracks 11 & 12 are CD bonus tracks.
All tracks were originally Chess Records singles, previously unissued on album in the US and are sequenced as recorded.