Dave Grohl made a guest appearance last night on the latest episode of "The Muppets" on ABC.  

In the episode Dave performs, "Learn To Fly" with the Electric Mayhem and challenges Animal to a drum off.

I have always been a fan of "The Muppets" and so far this has been one of the best episodes of the season.  It also featured Joseph Gordon-Levitt and Gonzo returning to his daredevil roots.