Buzz and Abercrombie are agents trying to get Jeff Parker the lead in a movie musical. Routines include Lou's insomnia and his being unable to hear Bud due to his wearing an earplug. Lots of movie studio stuff.
Bud Abbott and Lou Costello in Hollywood
When two bumbling barbers act as agents for a talented but unknown singer, they stage a phony murder in order to get him a plum role.