Double the fun! Mariah Carey's 5-year-old twins join her for special performance

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/ Source: TODAY
By Randee Dawn

Mariah Carey's annual holiday show in New York City has become something of a tradition, but on Thursday night tradition got a little tweak ... as she was visited onstage by her 5-year-old twins, Moroccan and Monroe!

And boy were "Dem Babies" adorable, as she showed in an Instagram video later. Little Monroe even struck a classic diva pose once prompted by mom!

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Carey is in the city for a 9-date residency at the Beacon Theater with her "All I Want For Christmas Is You" celebration that includes her songs and holiday tunes.

But this year it's also meant quite a few star-studded visitors, as well, including R. Kelly (who wore red velvet) and John Legend, who joined Carey for their 2011 duet, "When Christmas Comes."

There was also one other special visitor by the name of ... Beyoncé! Yep, Queen Bey stopped in and even posed for a selfie with her fellow diva on Sunday.

We also discovered that Bravo's Andy Cohen was in the audience for one of the shows, and clearly had a wonderful time:

But let's get back to those two little balls of sweetness, who hung out looking sparkly and adorable backstage with Mom:

They even got to play around outside in the snow later!

RELATED: Mariah Carey's twins steal the show during Hollywood Walk of Fame presentation

Feeling bad you didn't get your own tickets? Well, you can make it up to yourself pretty soon: Carey announced Monday that she would be joining forces with Lionel Richie to hit the road for 35 dates, starting next March in Baltimore.

Follow Randee Dawn on Twitter.