Vanity Fair Reports:
"What did we do to deserve James Corden? It’s been quite a year, but at last it’s time to start wrapping it up—and the Late Late Show host has apparently been working for all of 2016 to make sure his viewers do so in the best way possible.
How? By quietly enlisting a sampling of his “Carpool Karaoke” guests to belt out their best rendition of Mariah Carey’s “All I Want for Christmas.” And like every good present, this one comes with a nice bow on top: Carey herself, who took a quick spin with Corden to do some last-minute shopping.
This one kicks off in style: Corden’s in a festive sweater, and the Elusive Chanteuse is in what appears to be a red leather blazer. Because ’tis the season. Before long, though, the video cuts to various guests of “Carpool Karaoke” past: Adele, Demi Lovato and Nick Jonas, Elton John, Selena Gomez, Lady Gaga, Chris Martin, the Red Hot Chili Peppers, and Gwen Stefani."
Hat tip to Joemygod