I'm sure a lot of you cartoonists and enthusiasts have seen this one, but I still find inspiration every time I watch it. I love the surreal gags that you don't find in modern cartoons, like Betty's toes trembling from fright. The expressions and poses in the first part of the cartoon when Betty is singing is fantastic. Tons of personality and funny drawings! Take note of Betty's 'dog ears' in this cartoon.
I have no idea why a complete Betty Boop box set hasn't been released on DVD, but at least you can get a taste of these cartoons online. Be sure to head over to YouTube to watch other Betty Boop classics like Old Man of the Mountain and Minnie the Moocher.
I also recommend checking out the music video for The Squirrel Nut Zippers version of the Ghost of Stephen Foster which does a very good job of capturing the early Fleischer Studio vibe.