Watch: Justin Bieber Gets Into Fight After Cavs/Warriors Game 3

TMZ obtained this video of Bieber, shot shortly after 11 PM, outside his hotel in downtown Cleveland — he was face-to-face with the guy, who threw a light blow at Justin’s head. That’s when Justin uncorked a right to his face … and then it’s on!

Several people were standing nearby and tried to jump in, but the fight ends up spilling to the ground.