Nearly a year after Betty Boop introduced this popular King Features comic strip character to the animated screen in the short named after him, Popeye the Sailor invited his thousands, perhaps millions, of movie-going fans to join in the bouncing ball for his theme song. If his voice sounds a little gruffer than what you're normally used to hearing, that's because his original portrayer was not Jack Mercer but William Costello. While Mercer added the little charming mutterings that gave the character added dimension later on, it's Costello that give him that familiar laugh that sparkles here. There's some visual humor like when Popeye punches a clock that splits into other little clocks but it's a little surprising since this is a Max Fleischer Bouncing Ball cartoon that the refrain at the end doesn't have the words turn into pictures that the words mean. Still, if you're a Popeye completist, I highly recommend this two-minute short Let's Sing with Popeye.