Yesterday Justin Bieber tweeted a link to his 2011 Christmas duet with Mariah Carey of "All I Want For Christmas Is You", and it already has over 25,000 retweets.
Mariah's festive version of the tune is currently at second place in our poll for your favourite Christmas song (beaten only by The Pogues' classic "Fairytale of New York").
"I want Mariah Carey to come to my house and sing All I Want For Christmas Is You," Carly told BBC Radio One. "It's the best Christmas song!"
Surprisingly, Mariah's single didn't get to the number one spot in 1994 (the year of its release) - apart from in Italy.