carpoolkaraokexmasgraziaJames Corden and The Late Late Show have a special surprise in store just in time for the holidays: a Christmas episode starring Mariah Carey and other carpool guests from throughout the year singing Carey’s All I Want For Christmas Is You.

The feel-good three-and-a-half-minutes begins with James taking his Christmas tree home (instead of the usual premise of driving to work) and the queen of Christmas sitting beside him, Mariah. The two break into her hit song, followed by a perfectly timed mash-up featuring Lady Gaga, Adele, Selena Gomez, Chris Martin and more.

Yes, Corden and his team have been prepping the special episode all year long, requesting many Carpool guests sing along to All I Want For Christmas Is You and filing away the footage until now. If that’s not Christmas spirit, nothing is.

Carpool Karaoke has been a viral sensation throughout the year, with some episodes clocking up astronomical amounts of view on YouTube: Adele’s has been watched 130 million times, and Justin Bieber’s video is just shy of 100 million.

Corden’s own popularity has grown along with those views; he’s set to host the Grammy Awards next month.