Rihanna sang with Coldplay on stage at the Grammy Awards, but it was Chris Martin's wife, Gwyneth Paltrow, whom she hung out with backstage.
Both ladies went for a daring look, showing some skin in sexy side-baring dresses, and Paltrow uploaded a photo to her WhoSay account, tweeting at Rihanna "Say whaaat?"
Rihanna sat next to pal Katy Perry at Sunday night's awards and continued to celebrate at the after-party.
After the awards, Foo Fighters singer Dave Grohl tweeted, "smokin a doobie at the folkways records afterparty with rihanna and dave grohl #nirhana #Rivana"
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