Justin Bieber Punches Fan in Barcelona, TMZ

Justin Bieber did Floyd Mayweather proud, punching a guy in the face hard enough to make him bleed bad. The Biebs was in Barcelona, driving to perform Tuesday night, when a guy ran up to the car and stuck his hand in the window to touch him. Bieber responded with a quick jab to the face. The guy ended up a bloody mess as he and his friends reacted in shock. Full Story: SUBSCRIBE About TMZ: TMZ has consistently