Well, nobody saw this coming!
Well... it's who he left the club with that's causing a stir:
The brilliant and beloved Bruno Mars met his idols before performing at iHeartRadio's Sin City festival this past weekend, and you won't believe what happened next!!!
After putting on a pitch perfect performance of their own at Mirage, two dudes from Boyz II Men met up with the Locked Out of Heaven singer backstage and decided to sing a slew of smooooooth notes together!!!
Even cooler, we have EXCLUSIVE! video of the three of them getting down On Bended Knee!
ZOMG!!! One of this generation's best joining forces with one of our favorite singing groups from yesteryear!!! Beautiful!!!
That's so epic we barely even mind that it was shot vertically!!
Our only question: When will they all perform together on stage!?