Subject of the 1976 top ten hit song "The Rubberband Man" by The Spinners.
The lyrics are mostly about going to his show at a "club outside of town" and how awesome he is. They're a bit vague on specifics, but he seems to be a novelty act who plays a giant rubber band or bands. The lyrics describe a "short fat guy" whose act is to "stretch a band between his toes" and once he "got that rubber band up on his toes ... then he wriggled it up all around his nose."
He also has a trick of playing rhythm and melody simultaneously: "Playin' all that music, yet keepin' time."