Beautiful But Broke (1944)

When theatrical agent Waldo Main (John Eldredge) is inducted into the Army, he turns his currently-clientless agency over to his secretary Dottie Duncan (Joan Davis), who decides to organize an all-girl orchestra to fill the void caused by so many orchestra members being called to service in WWII, and joins struggling singers/songwriters Sally Richards (Jane Frazee) and Sue Ford (Judy Clark) in this endeavor. Dottie's screwball schemes to get engagements for the group often lead to disaster.