While searching for a name, the other members of the group discovered
Claude Pepper's given name, Jack Mack, and decided to use it as the
band's namesake; he left Jack Mack in 1987.
Before Jack Mack and the Heart Attack, he played with the Righteous
Brothers, Three Dog Night, the Hudson Brothers, Mac Davis and Yvonne
Elliman.
Jack Mack and the Heart Attack was playing during the Olympic bombing in Atlanta.