After the intros, the band would walk out with "Mannish Boy" by Muddy Waters playing over the speakers.

Mannish Boy - Muddy Waters (1955)

In 1986 she managed a British group called The Mannish Boys.

A 61-year-old Muddy Waters, his cheeks quivering and his fists pumping, storms through "Mannish Boy."

Junior Wells - harmonica on "Mannish Boy"

Billy Preston - electric piano and vocals on "Mannish Boy"

"Mannish Boy" - Chicago 22 November 1981, part only

"Mannish Boy" is a blues standard by Muddy Waters first recorded in 1955.

The original version of "Mannish Boy" was recorded in Chicago on May 24, 1955, under the title "Manish Boy."

Muddy Waters recorded several versions of "Mannish Boy" during his career.