Dunno why, but my kids LOVE the Hamster Dance song. The above is the only decent version to embed. There's better animation synced to the song out there, so just poke around a bit and you'll find it. I have it bookmarked on my iPhone so they can watch it anytime in the car. It grabs their attention, calms and quiets them down anytime. It's almost as addictive as the Gummy Bear song.
Enjoy the madness.