Mike Posner was a surprise guest/performer at Justin Bieber’s ‘Believe Tour‘ Orlando show last Fri. night, and then went to Miami for his last 2 US shows before JB takes his tour overseas to the UK plus several other countries. Mike didn’t perform Sat., but he did last night with several other special guests that…

High Quality Video: Medium Quality Video:

Below are some photos from yesterday in Orlando, FL, and I believe the last photo is of today in Miami, FL. I know that Mike is in Miami currently, and so is Justin for his last 2 ‘Believe Tour‘ concerts in Miami tonight and tomorrow. Mike Posner, Maejor Ali, Justin Bieber, Spiff TV, JB’s DJ…

Justin Bieber brought out surprise guest Mike Posner on stage at last night’s ‘Believe Tour‘ in Orlando, FL. Mike sings his hit song “Cooler Than Me” for the crowd. It’s a short video and only the beginning of Mike’s performance is recorded, but check it out!

Mike Posner was hanging out with Justin Bieber today and he ended up attending his ‘Believe Tour‘ concert tonight in Orlando, FL. He then surprised everyone when he took to the stage to perform his song “Cooler Than Me“. Check out the photos below; one of him performing and the other of him with JB’s…

Director Alfredo Flores shared a photo on his Instagram earlier today of him with Mike Posner, Justin Bieber and Maejor Ali all at the gym. Check it out below! “Gym Flow | @justinbieber @mikeposner @maejorali” – Alfredo Flores

Mike Posner performs “Boyfriend” and “Cooler Than Me” at the 2012 B96 Pepsi SummerBash.

One of the co-writers behind Justin Bieber‘s “Boyfriend,” Mike Posner sat down with B96/Chicago before his performance this weekend at SummerBash. While he explained how he first became a producer he was mum on whether he’d ever perform “Boyfriend” live. Bieber’s lead single off his upcoming album Believe, Posner filled us in on how the…