Here's mine. It's just so happy-making—it takes me right back to childhood. I put it on the other day, and tried to get the kids to bop their heads from side to side and dance like the girl in the purple dress (of course, Max fell in love with her). But the kids weren't feeling it. So I did the dance all by myself. And thankfully, Dave did not catch that on videotape.
So, share, what's your all-time favorite holiday song?