Laverne & Shirley: Season 6, Episode 21
Sing, Sing, Sing (19 May 1981)
Carmine & Shirley perform a beautiful duet at Cowboy Bill's. Laverne too,wants to sing as pretty a song as they did. Carmine gives her voice lessons and Lenny also tries to help. ...but it just may be Squiggy has the real answer for her.