Or, rather, the version of Santa Claus that Eraser Head would be. In a caption that should surprise no one, Aizawa promises to “distribute presents rationally” to the people of the world.

But don't worry. Help is at hand. The Earworm Eraser is a 40-second audio track designed specifically to squash earworms — a song on repeat circling around and around in your brain that can't ...