As the icon was busy inscribing her signature on Rihanna's chest, Ri grabbed the mic to address the cheering audience. "Mariah Carey is signing my t**, y'all!," she announced to the crowd.

Rihanna was just a regular ol' member of the Lambily on Tuesday night (Dec. 17) when she was spotted freaking out during Mariah Carey‘s final Christmas Time tour show at Barclays Center in Brooklyn.

Popstar Rihanna attended Mariah Carey's final Christmas Time concert. The concert was at Brooklyn's Barclays Center. Rihanna called out to Carey from the audience. Carey signed an autograph on ...