The cartoon starts with the opening of a theater and Mickey Mouse sweeping and using the broom as an instrument and a dance partner. Mickey is then faced with a large show goer, who must be deflated in order to fit through the doorway. The band takes over, with a large variety of short gags occurring throughout.
The cartoon opens with a theater's entrance being opened, Mickey Mouse sweeping and using his broom as both an instrument and dance partner.  A large audience member then appears, requiring deflation to fit through the doorway. The band takes over, with various short gags occurring throughout.