James Corden recapped a year's worth of "Carpool Karaoke" passengers with an all-star rendition of Mariah Carey's "All I Want for Christmas," featuring Adele, Lady Gaga, Elton John and Carey herself singing the seasonal classic.
Other 2016 "Carpool" guests like Selena Gomez, Demi Lovato and Nick Jonas, Gwen Stefani, Coldplay's Chris Martin (who, like Adele, must have recorded his Christmas contribution back in January) and the Red Hot Chili Peppers, who add handclaps and "Ho Ho Ho's."
The Late Late Show featured a series of Christmas-themed performances to get viewers into the holiday spirit, including a recent collaboration with Neil Diamond that turned the singer's "Sweet Caroline" into "Sweet Christmastime," about an office party that turns into a raunchy bacchanal.
The former Broadway star is reimagining the reach of late-night TV – one car ride at a time. Watch here.