more like boo!
Helen Kane. The original Boop-A-Doop girl.
She unsuccesfully sued Fleischer Studios, creator of the Betty Boop character for stealing her trademark phrase and look. Betty Boop did have some similarities to Kane, Hairstyle, Round face, Brooklyn accent and of course the famous Boop-Oop-A-Doop catchphrase. Unfortunately for Miss Kane, Fleischer proved in court that she was not the first to use this catchphrase, Little known African american singer Baby Esther booped before her. Whats more is that they proved that Kane had seen her perform some years earlier.