This year, it seems like The Simpsons and The Muppets (quite often in the form of Sesame Street) have mastered the art of going viral. From Ke$ha and Banksy openings on the former to Mad Men and True Blood parodies on the latter, the shows have been no stranger to internet repetition. Now, never ones to miss a trend, The Simpsons has co-opted Muppet fame, played off of Katy Perry's now infamously cut appearance with Elmo, and threw together a live-action dream sequence for their holiday episode. That's right, kids. In one clip, you get puppets, Homer Simpson, and Katy Perry in yet another absurdly themed get-up. It's cute, clever, and worth a glance if only because it's a collision of the more innocent web phenoms of 2010.