Time tour wrapped up with a major bang, and guess who was in the crowd? Rihanna. The "All I Want For Christmas" queen performed her final show at New York’s Barclays Center on December 17, and, naturally,

For Mariah Carey, it’s always work, work, work, work, work. But this time, the singer, 55, had a special guest. Rihanna made an appearance during the final stop of Carey’s Christmas Time tour at the Barclays Center in New York City on Tuesday, Dec. 17.

Rihanna and Mariah Carey belong together. Rihanna was part of a star-studded crowd at the Barclays Center in New York City this week, where Carey hit the stage for the final performance of her Christmas Time show.

All Mariah Carey wants for Christmas is to no longer be dubbed a “diva” after descending into the crowd to autograph Rihanna’s breast.

Nick Cannon has shown his approval for a viral moment that involved Mariah Carey, and Rihanna during a recent concert in New York.

On Tuesday, clips from Mariah’s concert shows her stopping the show to say hello to Rihanna, who says almost immediately that she wants Carey’s signature. After locating a Sharpie, Rihanna tells Carey, "Sign my tit, because my man made me get you."

In an exclusive interview with PEOPLE, the Queen of Christmas also opens up about whether she has plans for future Christmas shows