Billboard Music Awards: Watch Britney Spears, Rihanna Perform 'S&M'

The singers' racy live performance features bejeweled handcuffs, pole dancing and a playful pillow fight.

Britney Spears and Rihanna kicked off the Billboard Music Awards in head-turning fashion Sunday night with a racy live performance of their "S&M" remix complete with bejeweled handcuffs, pole dancing and a playful pillow fight. 

Rihanna, whose "S&M" single shot up to No. 1 on the Billboard Hot 100 after she teamed up with Spears for the remix, led the duet in an all-white, bondage-inspired outfit as silver gloved hands emerged from the floor and dancers surrounded her.  [Watch the video below.]

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Spears' surprise collaboration with Rihanna was rumored all weekend long, but it wasn't until the pop star appeared onstage wearing a black blindfold -- another nod to the song's sexually deviant theme -- that it became official. After engaging in a little racy chair choreography, Spears and Rihanna ended the number with a side-by-side pole dance and pillow fight, which left the stars covered in feathers and even laughing.  

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Spears and Rihanna's performance opened the BBMAS, airing Sunday night on ABC from the MGM Grand Arena in Las Vegas. Host Ken Jeong followed their performance with a musical number featuring cameos by Nicki Minaj and Pat Monahan of Train.

Taylor Swift, Justin Bieber and Taio Cruz won the first awards of the night -- Billboard 200 Album Artist of the Year, Digital Artist of the Year and Hot 100 Song of the Year, respectively. 

Rihanna leads the finalists with mentions in 18 award categories.