We have been truly blessed. Late night host James Corden and his team of Carpool Karaoke geniuses figured out exactly what we want for Christmas — and it's a diva sing-off of epic proportions.

In a special holiday episode of the segment, Carey told Corden that the gift she wants is for him to sing her song "All I Want for Christmas Is You," because of course.

Little did we all know that Corden had been preparing for this very moment all year and did Carey one better by pooling — no pun intended — clips of this year's guests belting Carey's classic, and it was everything.

Adele slayed as usual.

Demi Lovato, with backup from tour mate Nick Jonas, gave us her most dramatic vocal run.

Lady Gaga left it ALL on the dashboard.

Selena Gomez gave us cuteness overload.

And even Elton John, Chris Martin, Gwen Stefani, and the Red Hot Chilli Peppers got in on the action.

But you can't have a lineup with this many icons and not expect fans to go H.A.M. about which one of their faves reigned supreme.

They are all winners in our book but you can watch the whole thing below and decide who took home the diamond-encrusted Christmas Diva crown.

Happy Holidays!