Rihanna NBA All-Star Game 2011 Performance [VIDEO]

Flame-haired pop songstress Rihanna celebrated her 23rd birthday with a provocative performance at the annual NBA All-Star Game in Los Angeles on Sunday night.

Clad in skintight hotpants and fishnet stockings, the accented islander cavorted around stage and even grabbed her crotch in full view of the star-studded crowd at The Staples Center. The Barbadian native was joined on stage by hip-hopster Kanye West and Drake in a live set reminiscent of her racy show on the hit UK talent series The X Factor, which prompted 4,500 complaints from viewers when it aired on ITV last December.

Check out RiRi’s medley of hits — including “Umbrella,” “Only Girl In The World,” “Rude Boy,” “What’s My Name?,” “All of the Lights” — at this year’s East vs. West faceoff…