One Panel #523: Who's the Best Dancer of the Superhero Set?

From Wildcat: "Who Is Wildcat?" by Bill Finger and Irwin Hasen, Sensation Comics #2 (February 1942)

How do you do the Wildcat? It's simple! Swing one arm to make the top of "S", and pedal the same side's leg to do the bottom part, then same thing with the other side of your body. Continue until song ends or you drop from exhaustion!