James Corden couldn't let the year end without a jovial Christmas offering - a dope Christmas mashup.

Joined by popular crooner Michael Buble, the pair sing "Christmas (Baby Please Come Home)" which features a few of the Carpool Karaoke guests from 2018, including Cardi B, Paul McCartney, Migos, Shawn Mendes, Barbra Streisand, Ariana Grande, Adam Levine, and Christina Aguilera.

Viewers were especially feeling Aguilera's contribution to the mix.

Here are just a few of the comments:

"Christina Aguilera killed it 🙌"

"Xtina and Michael are in a different league.. so good"

"X-TINA is the X-MAS queen oft this X-MAS special - her voice is amazing"

"Cardi B 😍 and Xtina 🔥 we need a collab!"

"I wanna watch Christina singing this... I mean, like by herself; alone. Hahaha."

"Christina’s voice stands out so much! She was the best vocalist in this video. Such a unique and strong voice! I love Mariah Carey’s version of this song and wish they would have featured her!"

"christina aguilera ft her backup singers"

"I love how Christina isn’t trying but is still upstaging everyone else."

Who was your favorite?