Rihanna enjoys night out with gal pal Katy Perry in semi-sheer shift dress: Exclussive to Admiano

They're two of the biggest female artists in the world. But there's clearly no animosity between chart rivals Rihanna and Katy Perry since the pop princesses were enjoying a girls' night out at OPUS nightclub in New York City on Saturday. The 27-year-old Bajan beauty and the Roar hit-maker left the venue separately after a fun-filled evening on the town. <!-- rectangle --> (adsbygoogle