In Barcelona, Justin Bieber punches fan who tried to touch him

The Fan says 'I touched his face like this and he went, 'Boom','
Watch the Shocking Incident....

“The screaming in these breaks has got to stop,” he said prior to his dramatic departure. “Please and thank you. I don't think it's necessary when I'm trying to say something and you guys are screaming.” Last month, Bieber prompted anger among some fans when he stormed off stage in Manchester after demanding the crowd stop screaming in the gaps between songs. After returning to the stage last Monday, the singer went as far as to suggest Manchester could not “handle it”.