Mariah Carey doesn't want a lot for Christmas. We all know this. But on Thursday night's Carpool Karaoke, the diva revealed one thing she longed for: James Corden singing her holiday classic, "All I Want for Christmas Is You."

In a surprise segment of The Late Late Show, Carey and Corden got ~festive~ by hauling a Douglas fir atop their SUV and a bevy of wrapped presents in the backseat. And as they sang, other celebrities joined in.

AdeleSelena GomezRed Hot Chili PeppersChris MartinGwen StefaniElton JohnLady GagaDemi Lovato and Nick Jonas all joined in on the fun.

Watch the joyous video above, and then take it back to a throwback interview with Mariah Carey on Fuse: