Mariah Carey's 7-month-old twins Moroccan and Monroe made their music video debut in the singer's collaboration with John Legend, "When Christmas Comes."
In the video, Carey and Legend are shown celebrating the holidays with their families and "dem babies," as Carey calls them are shown in their Christmas outfits, dancing with their father Nick Cannon.
The video, which contains clips from "A Charlie Brown Christmas," also shows the 41-year-old singer playing in the snow with Snoopy.
Carey also recently did a duet of her holiday classic, "All I Want For Christmas" and debuted a slimmed down figure in the music video.
Bieber's Christmas album, "Under The Mistletoe" debuted at No. 1 on the U.S. chart and shipped 210,000 units during its opening week following its November 1 release.
Carey recently told the UK tabloid The Sun that she is "humbled" that "All I Want For Christmas" became a holiday classic.
"I'm amazed and humbled by its popularity, even all these years later. And I think it's great that people have the song as a ringtone," Carey told The Sun. "Who'd have thought, all those years ago when I wrote it, that it would still be having an impact today?"
Mariah Carey became the latest Brand Ambassador for the Jenny Craig company and lost 30 pounds since starting its weight loss and diet program in late July, three months after she gave birth to twins.
Carey and husband Nick Cannon, 31, welcomed son and daughter Moroccan and Monroe in April.
Check out the music video for Mariah Carey and John Legend's duet of "When Christmas Comes" below and vote in our poll.