Oh Come All Ye Faithful performed by Twisted Sister, from their album titled A Twisted Christmas which they released back in October, 2006.
I remember the first time playing this video for my wife and kids a few years back, they all thought I was crazy (I suggest waiting until the kids are the right age to avoid potential adverse effects from watching…). The reaction I got was similar to when I first played I Wanna Rock for my kids at a young age.
Anyway, I cranked it up loud, very loud, and they soon saw the light. I got everyone singing and playing along. Although I think the part they liked the best was comparing me to the guy in the red t-shirt.