RihannaRihanna was performing in Las Vegas For New Year's Eve as a host in the night club but the opportunity was also taken by her to perform for some lucky people.

To put on a show, Rihanna headed over to The Cosmopolitan after the event.According to the report, she performed “What’s My Name?” with Jay-Z and Kanye WestKanye West.

A huge was being holded by The Cosmopolitan, invite-only bash where Jay-Z and ColdplayColdplay both were being perfromed.