In the latest 'Muppets' movie, Foo Fighters frontman Dave Grohl goes back to his Nirvana roots by manning the drums in a depressing bar band called 'The Moopets.' With Fozzie Bear fronting the fake Muppet band, Dave Grohl plays the part of 'Animool,' the fake version of Muppet drummer Animal.

The funniest part of Grohl's cameo is how low-key it is. With a film filled to the brim with celebrity cameos as themselves, Grohl gets maybe five-seconds of face time. Grohl's lack of ego and split-second appearance creates an hilarious moment in 'The Muppets,' which provides a quick laugh and a solid memory.