Factory workers never had so much fun! Laverne and Shirley were two kooky girls who were introduced to TV audiences on Happy Days and ended up with their own hit show. They got into all kinds of trouble but always made it look like fun. The upbeat theme song was written by Charles Fox and Norman Gimbel and sung by Cyndi Grecco. The lyrics were empowering, but perhaps the most repeated line over the years was a mix of Yiddish and German words: "Schlemiel! Schlemazl! Hasenpfeffer Incorporated!"