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.

Bieber amped up the energy with his hip-hop-ified take on the Christmas classic "Little Drummer Boy," which included him spitting a holiday-themed rhyme. Decked in all black, the teen star had the crowd screaming. He was even joined by Busta Rhymes, who appears on the Under the Mistletoe cut.

JB then slowed things down with "The Christmas Song (Chestnuts Roasting on an Open Fire)," leaving his female fans swooning as he crooned the holiday standard. He was joined by his mentor Usher for the track.

"God bless and Merry Christmas," Bieber told the crowd before tossing to the "All I Want for Christmas Is You" video. The clip features Mariah Carey dressed in a sexy Santa Claus outfit standing in a department store as she dances around singing the track, almost as if she's on display for holiday shoppers. It also sees Bieber and his pals shopping for some choice holiday gifts like high-top kicks.

In between performance shots of Bieber and Mariah, a street-corner Santa Claus hands out envelopes to shoppers on the street, teasing an inevitable yuletide party scene. The shoppers are then welcomed into the department store, where Justin and Mariah hand out gifts to everyone. The duo tease and flirt with each other as everyone around them unwraps their gifts.

Bieber and Carey re-recorded her classic holiday tune for his chart-topping holiday album, which also features appearances from the Band Perry and Boyz II Men. They filmed the video earlier this month, just in time for the holiday season.

Did Bieber get you in the holiday spirit? Let us know in the comments!