This isn't your everyday trio--Rihanna and Bruno Mars and Sting will be teaming up for a performance on Sunday night's Grammy Awards. RiRi and Bruno are both up for multiple awards, and Sting already owns 16 Grammys.

Also new on the bill is Kelly Clarkson. And some new presenters have been added -- Beyonce, Prince, Jennifer Lopez, Hunter Hayes and NCIS star Pauley Perrette.

The Grammy Awards air Sunday at 8:00 p.m. ET on CBS.

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 @OfficialSting, @Rihanna, @BrunoMars to perform together on the Grammys