Punch Drunks

Moe is a boxing promoter looking for a good fighter. Curly is a mild-mannered waiter who goes crazy whenever he hears "Pop Goes the Weasel". Larry is a violinist recruited to play the tune. Curly becomes a great fighter and gets a championship match. Things look bad when Larry's violin is smashed, but everything turns out fine when Larry delivers the music by driving a truck through the arena wall.