I had the funniest idea the other day: Stephanie of LazyTown (see icon) gets her Hogwart's letter. And she has a rare in-born magical gift to make other people around her break into song and dance. It made me laugh, imagining Draco Malfoy being forced, by her magical gift, to sing to some LazyTown-esque song.
OMG, it's even funnier imagining Filch, Voldemort, and the Death Eaters being forced to sing along. :-D