Mariah-Bieber Sing Christmas Classic

Time to roll out our favorite Christmas videos. I've always loved Mariah Carey's 'All I Want For Christmas Is You'. And, it's been a classic ever since the late 90's. Last year it was revamped with the help of Justin Bieber. Never thought these two would end up on a song together and even though the revamped version is pretty much like the old one; you can tell these two were having tons of Christmas fun on this. Even though, Mariah is old enough to be his mom.