PICS: Stars Set to Perform at Grammys

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It's official! Rihanna will join the already star-studded list of performers at Sunday's Grammy Awards, where she's set to take the stage with fellow superstars Bruno Mars and Sting for a special collaboration. The Grammy Awards air live from the Staples Center in Los Angeles on Sunday, February 10 on CBS at 8 p.m. ET.

Click through to see the other confirmed acts!