Rihanna didn't leave much for the imagination when she took the stage at the 2011 Billboard Music Awards. Joined onstage by Britney Spears, the duo did a racy performance of their S&M remix that involved pole dancing, decked out handcuffs and a pillow fight.

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Rihanna took the stage in a bondage-inspired all white costume and Britney later joined her in a risque black costume and blindfold. All week fans speculated that there would be a Spears/Rihanna collaboration, but nothing was ever confirmed. So, when Britney took the stage the audience was surprised.

Britney Spears Rihanna

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Britney will be taking the stage once again tonight to perform her own song, Till The World Ends.

What did you think of the video?

Photos courtesy of Fame Pictures