Bruno Mars is making the promotional rounds in support of his new single “Grenade” in the USA. The Elektra Records star performed the midtempo song produced by The Smeezingtons on ‘The Extended Sessions’ of Billboard’s Tastemakers series live from Mophonics Studios in NYC earlier this week. PHENOMENAL! “Grenade” has easily become one of my favorite tunes of the moment. It has it all, great melody, great lyrics plus Bruno sings it amazingly! And this acoustic performance wasn’t the exception obviously. Mr Mars ROCKED it.