You've seen Taylor and Beyoncé, and there's no way you forgot Britney and Madonna. Now a new pop star duo has been born: Katy Perry and Mariah Carey! The divas came face to face on Sunday at Mariah's concert at Caesars Palace in Las Vegas. Naturally, Katy got the royal treatment - hanging out with Mariah backstage and posing for cute pictures were both on the menu. "Moments," Katy captioned their portrait on Instagram, referring to the term Mariah basically owns. Katy yet again proved her fandom is for real when she checked out a giant Mariah poster and put her own spin on Mariah's term of endearment for her hardcore fans in the caption: "lambily 4lyfe." Read on to see the pictures and video bound to bring Kitty Kats and Lambs together, then check out more celebrity duos you didn't see coming.
from POPSUGAR Celebrity http://ift.tt/1KgHVqS