Justin Bieber, Mariah Carey Play Santa In 'Christmas' Clip

Deck the halls! The holiday kicked into high gear Wednesday night (November 30) when New York's massive Christmas tree was lit during "Christmas in Rockefeller Center." Plenty of A-listers were on hand, including Justin Bieber, who premiered his highly anticipated video for "All I Want for Christmas Is You," featuring Mariah Carey.

Before the strings of lights were illuminated, performances from Michael Bublé, Katharine McPhee, Big Time Rush, Tony Bennett, Carole King and Neil Diamond warmed viewers up. But Bieber was the headline act of the night, giving fans some big performances and an even bigger video premiere.
Source: MTV