A nice vehicle for song numbers featuring a very early Milton Berle in his only 1938 film foray. Also featuring Ann Miller who (if IMDB is to be believed) was only fourteen at the time.
Ann Miller, Milton Berle, Jack Oakie
Bob Burns and his Bazooka
Interesting tidbit: a main character was played by Bob Burns who popularized a musical instrument that was kind of like a large slide kazoo. He called this instrument his "bazooka". In WWII the soldiers thought their new anti-tank weapon looked similar and called it by the same name.