Bruno Mars Launches His Bluesy “Grenade” On ‘David Letterman’

Idolator’s bowling buddy Bruno Mars hit up the Late Show With David Letterman last night and left a piece of his heart on the stage after turning out an emotional, bluesy rendition of his new single “Grenade.” It was a Grade A performance from the hitmaking singer-songwriter, that found him backed by an all-female string section. Watch Bruno’s heart-tugging stint on Letterman below!

Mars kicks off his Doo-Wops & Hooligans Tour on Tuesday, November 16 in San Francisco. He’ll also scheduled to perform at The Grammy Nominations Concert Live, which airs December 1 on CBS.

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