At the Jerry Lewis Labor Day Telethon in 1976,Frank pulled a fast one on Jerry by surprisingly bringing onstage Dean after Frank did his songs(Don't remember what songs). Apparently Martin & Lewis hadn't been onstage together in decades because when Jerry saw Dean he looked @ Frank & Jerry said "You sonuvabitch!", unabridged for TV even then. The former team carried on a subdued conversation, though civil.I thought it was interesting to see their show biz as well as personal interactions onstage, a la the Rat Pack.