Fan of John Williams Movie Scores?
Okay, I thought I was the world's biggest fan of the music from Star Wars, Superman, Close Encounters, and all the other films John Williams has scored. But I think I must relinquish that title to this fellow here (but see note below):
Here's a link to the video at scifiwire, in case it doesn't display correctly for you.
Well...as Josh pointed out, it turns out that guy did a really clever job of lip syncing a song actually created by a group called Moosebutter. You can hear (or buy) the song here on their website. Scroll down, and you can see a video of their live performance of the number.
It would have been really nice if the fellow above had credited his source.