Mike Posner performed “Boyfriend”, a Justin Bieber cover song that he wrote and produced, on the Warrior Tour at Mohegan Sun Arena in Uncasville, CT on August 23, 2013. He sounds great singing the song live and hitting high notes, but too bad he only sings a small part of it. I’d love to hear him sing this song entirely, but his own original version that he wrote before giving it to JB. Check it out!