Bruno Mars

Bruno Mars will be globetrotting for his Moonshine Jungle tour.

Bruno Mars' video for the haunting ballad 'When I Was Your Man' is a simple, focused clip where the crooner plays the role of piano man, with a drink perched atop his instrument, a suit on his back and shades covering his eyes while he tickles the ivories. The emotion reverberates off the screen as he sings the lyrics of the song.

Rihanna was already confirmed as performer for the 2013 Grammy Awards, but today comes word that she'll be joined on stage by two of pop music's most respected gentlemen, Bruno Mars and Sting. The Recording Academy announced the news in a press release that also revealed that Record of the Year nominee Kelly Clarkson will be performing during the ceremony.

Rihanna will shine bright like a diamond at the 2013 Grammy Awards with the help of musicians Bruno Mars and Sting. The pop trifecta will perform together for a special performance at the prestigious awards ceremony.