Rihanna said goodbye to 2010 at PURE in Sin City on New Year’s Eve. The red-haired starlet, dressed in a body-hugging striped dress, hosted a paid gig at the Las Vegas nightclub, counting down to 2011 with thousands of guests who paid hundreds of dollars to party with the pop princess. RiRi’s girlfriends were by her side as the newly single star raised a toast to the future.