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.

As seen in this video, Rihanna was at the show when she got Carey’s attention and got her signature in red Sharpie on her left breast. As Carey signed, Rihanna said, “Wow, this is iconic.” She then grabbed the mic and told the audience, “Mariah Carey is signing my tit, y’all.”

Stars collided at the Barclays Center in New York City on Tuesday night, as an epic moment captured on video between two music icons has everyone talking.