by Radar Staff
Britney Spears and Rihanna kicked off the 2011 Billboard Music Awards Sunday night in spectacularly sexy fashion.
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The reigning princesses of pop took to the stage at the MGM Grand Hotel and Casino in Las Vegas to perform their remix version of S&M as the opening performance of the show.
Wearing contrasting outfits, Britney in a black basque with black leather boots and Rihanna in a white version with white thigh high stiletto boots, the two women gyrated and danced together on stage.
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Britney appeared back at her best, looking confident on stage and grinning throughout the set.
At one point, Rihanna grabbed a smiling Britney’s face and planted a big kiss on her cheek making the crowd go wild, screaming and cheering.
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The show, broadcast on ABC, also included performances from Ke$ha, Black Eyes Peas and Lady Gaga.
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