It seems that there is a positive correlation between your level of fame and just how much fans are willing to invade your personal space in an effort to interact with you.

Last night in Barcelona, Justin Bieber was traveling in a private car through a crowd of fans as he was leaving a gig, and one fan reached into the car’s open window in an attempt to… touch Justin? Whatever the intention was, it was clearly an invasion of personal space as Justin reacted in a volatile fashion, punching the fan in the face.

Though it looks like a rather light tap initially, the fan is shown bloodied and stunned afterward.

Bieber has yet to respond to the released video footage.