‘Carpool Karaoke’ Christmas Special: Mariah Carey, Adele, Elton John Join James Corden for Epic Sing-Along (Video)

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James Corden wants you to have a very Merry Christmas, and he recruited Mariah Carey to help with the festivities.

In a new installment of “Carpool Karoke,” Corden and Carey launch into a rendition of her classic song “All I Want for Christmas Is You.”

Just as they launch into the song, we start cutting back to past guests on “Carpool Karaoke,” including Lady Gaga, Elton John and Gwen Stefani, all singing along with Carey’s holiday tune.

It has indeed been a wonderful year for “Carpool Karaoke.” In addition to landing stars like Adele and Britney Spears to join him on rides, Corden also sold the format, with a new series based on the “Late Late Show” segment to launch on Apple Music.

Watch the video above.

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