March 8, 2013 at 4:15 PM ET
Justin Bieber's image isn't the only thing taking a beating this week.
After being humiliated by a nightclub on his "worst birthday" on Sunday and fainting backstage at a concert Thursday, the tween heartthrob clashed with paparazzi outside his London hotel Friday morning.
Exchanging F-bombs with a local photographer, the babyfaced "Believe" crooner was forced back into his vehicle by his own bodyguards when he attempted to throw some adorable punches at the aggrieved lensman.
"Sometimes when people r shoving cameras in your face all day and yelling the worst thing possible at u ... well I'm human," the pop superstar tweeted. "Rough week."
Bieber said he wouldn't let the incident get the best of him and said he'd channel his adrenaline on stage for Friday night's show at London's 02 Arena.
"Only way someone can break u is if u let them," the Biebs summed up on Twitter. (Presumably a reference to his spirit and not his manhandling by security guards.)