Great! Thanks for the links.

I know the song but don't recall ever seeing the video (though I likely did but was stoned at the time).

My son and I sing the song all the time. Just at random one of us will start it and the other follows along. We share one laptop and when we are finished if we find anything we think the other might find interesting we leave that page up for each other. It's really fun. I like the Muppet's version. I am going to leave that page up for my son.