This is something someone very close to me started a couple years ago and nearly everyone who has done it, loves it.
It's adapted from an energizer he learned a while back that originally used the song "Singing in the Rain." He "Disneyfied" it and changed it to "Let's Go Fly a Kite." During the holiday season he likes to use "Rudolph the Red Nosed Reindeer."
I personally haven't seen it for a while, but this was posted only a few months ago, so I i magine it still happens.