Mariah Carey‘s grip on the holiday season shows no signs of loosening.

On Saturday (Dec 13), the Queen of Christmas closed out her Christmas Time Las Vegas residency with a very special face in the crowd, Rihanna.

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Fan videos quickly surfaced showing RiRi smiling, singing along, and fully locked into the festive spectacle as Carey delivered her seasonal classics with trademark vocals, glittering looks, and larger-than-life visuals at Dolby Live. Check it out below:

Rihanna at Mariah Carey’s “Here For It All Holiday Special” in Las Vegas tonight pic.twitter.com/R3Um7nnkBw

— FentyStats (@FentyStats) December 14, 2025

The night didn’t end there either, with the pair sharing a backstage moment that excited fans. Take a look:

 

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Running from late November, the two-week residency transformed Vegas into a winter wonderland, proving once again that when Mimi hits the stage, it’s a Christmas must-see!

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