If you are a musical fan then you will like this especially if you are an Elvis fan (but you dont have to be an Elvis fan to enjoy this film).
This period musical is about Johnny a singer (played by Elvis) who performs a play with a troupe of musical actors aboard a Mississippi riverboat. Johnny is dueted with his girl friend Frankie (Donna Douglas, famous for tv show 'The Beverley Hillbillies) who happen to be performing the musical called Frankie & Johnny.
Johnny is also a gambler and extremely superstitious, and after some bad luck on the roulette wheel he and his friend played by Harry Morgan(a star of 'Mash')visit a gypsy fortune teller who informs Johnny that a redhead will bring him luck.
Then he meets Nellie Bly (Nancy Kovack) his ruthless boss's girl who happens to be a redhead. Frankie, a blonde, is jealous when she sees them together and so is Johnny's boss and his loyal henchman plots to have Johnny accidentally murdered.