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FILE - This Nov. 19, 2012 file photo shows Rihanna performing at the Kentish Town Forum in London. Sting, Rihanna and Bruno Mars will hit the stage for a special performance at next week's Grammy Awards. The Recording Academy announced Monday, Feb. 4, 2013, that they will perform together at the Feb. 10 awards show. Triple nominee Kelly Clarkson will also take the stage. (Photo by Jon Furniss/Invision/AP, file) Image Credit: Jon Furniss/Invision/AP

So a Bajan dance-pop femme fatale, a neo-Motown crooner and a bass-wielding British titan of tantra walk into a bar ... or rather, onto the Grammys stage ion Sunday.

CBS announced on Monday that the unlikely collaboration of Rihanna, Bruno Mars and Sting is the latest addition to the telecast set for this Sunday. Kelly Clarkson, fresh off her well-received (and live) performance at President Obama’s inaugural, will also perform her own set.

There’s no news as to what the trio will perform, but they will certainly make for an unorthodox stylistic mashup. |

The group joins a wide slate of confirmed Grammy performers including the Black Keys, Taylor Swift, Justin Timberlake, Frank Ocean and Elton John. Also added to the telecast as a presenter? Beyonce, who, after reuniting with Destiny’s Child at the Super Bowl and generating enough heat with her performance, possibly caused a power outage at the Superdome. The Grammys will held on Sunday night (Monday in the UAE) in Los Angeles.