Rihanna will perform with Bruno Mars and Sting (!) at this year's Grammys, it's been confirmed.
"In case you missed, @BrunoMars @Rihanna + Sting (@OfficialSting) will be performing together at the 55th #GRAMMYs next Sunday on @CBSTweet!" someone employed to update the Grammys Twitter account posted.
It's not clear which song they'll do but hopefully it's a medley that involves Bruno and Sting popping out of the stage 'a la' Kelly and Michelle.