Superstar Rihanna leaves the Playhouse nightclub with a group of female friends, in Hollywood Blvd in a sheer see-through dress

89796, LOS ANGELES, CALIFORNIA – Thursday January 24, 2013. Superstar Rihanna leaves the Playhouse nightclub with a group of female friends, in Hollywood Blvd. Rihannas dress revealed a nipple piercing in the flash of the cameras. Photograph: ©PacificCoastNews.com **FEE MUST BE AGREED PRIOR TO USAGE** **E-TABLET/IPAD & MOBILE PHONE APP PUBLISHING REQUIRES ADDITIONAL FEES** LOS ANGELES OFFICE:+1 310 822 0419 LONDON OFFICE:+44 20 8090 4079