It has been eight years since Britney Spears and Madonna shocked the world with their steamy onstage kiss on the lips at the MTV awards. And tonight it was a familiar scene as the 29-year-old received a smooch from Rihanna as they performed onstage at the Billboard Music Awards in Las Vegas. The 23-year old Barbados born singer planted the wet one on Britney's cheek after they performed her hit single S&M.

Suitably both women were clad in identical bondage style body suit as they took to the stage. While Britney slipped into the black style of suit, Rihanna opted for white, much like the pantsuit she arrived to the show in. Britney's vigorous work-outs for her up-and-coming Femme Fatale tour proved to be paying off, with the blonde looking incredibly toned into her stage costume. The pair certainly didn't disappoint the crowd as they put on a very steamy performance.
Keeping within the bondage theme, Rihanna crawled on her knees while Britney commanded and dominated her with a long chain. The roles later were reversed when the Toxic singer held up some chains in the air as she was surrounded by topless male dancers. Britney also donned a bondage-style mask complete with bunny ears as she wrapped her wrists up in chains. As always Rihanna turned up the heat on stage as she writhed around on the stage floor, while a pair of male hand attempted to grab her from underneath.
The Umbrella singer was also adorned with the kinky metal chains. The two women topped off their show with a sexy pillow fight, hitting the male dancers with the bedding until feathers flew in the air. The kinky performance certainly made one man happy. Following her onstage antics, Britney hopped off the stage and into the arms of boyfriend Jason Trawick, who has been watching from the sidelines.
The 39-year-old looked like the cat that got the cream as the couple posed for a happy snap backstage.
Justin Bieber was also watching from the crowd with his girlfriend, Selena Gomez. The young couple were reminiscent of the Justin Timberlake and Britney of yesteryear, as they posed together smiling.
Selena affectionately rested her hand on Justin legs as they both smiled for the cameras. The 17-year-old teen singing sensation looked every bit the popstar in his gold and black tuxedo jacket, while Selena,18, was the sexy starlet in her slinky black-cut gown. After five years of dormancy, the Billboard Music Awards have this year been revived with a major dose of star power. Popstar Beyonce is set to receive the top honour with her Millennium Award, which recognises the 'artist of the millennium.
Finalists and winners are determined by their rank on the Billboard charts and their 'social and streaming activity.'Rihanna is the top finalist, competing in 18 categories, including top artist, top female artist, and top radio songs artist. Eminem's is up for 16 awards, also including top artist. Other nominees include Taylor Swift, Ke$ha, and Nicki Minaj. Lady Gaga is in 12 categories, while Bruno Mars and Justin Bieber are in 11.