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 last night 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.
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