Poor Biebs. This just isn’t his week. In the latest Justin Bieber related news, the 19 year old star lashed out a paparazzo who was trying to snap a pic of him in his “birthday hat” as he left his London hotel. Images have emerged of an angry Bieber being restrained as he launches himself towards the camera man.

We have to warn you, there's a bit of strong language involved.

According to TMZ, Bieber was surrounded by bodyguards as he made a scramble for his SUV, but bumped into one of the photographers en-route. The upset photographer then claimed he was assaulted and let rip at the Biebs with some string of insults: “F**k off back to America”, f**king little moron”, he reportedly shouted at the star.

Bieber reportedly jumped out of the vehicle, hitting back just as eloquently with “I’ll f**king beat the f**k out of you” before trying to swing at the photographers. And as you do, the young pop star took to the tweet machine to express his frustration afterwards ,saying: "Ahhhhh! Rough morning. Trying to feel better for this show tonight but let the paps get the best of me (sic)"

"Not gonna let them get the best of me again. Gonna get focused on this show tonight. Adrenaline is high now. Gonna put it on the stage. Only way someone can break u is if u let them. (sic)", he later added.

After all that, Justin will be performing at the 02 in London tonight, apparently. And there we were thinking he might take it easy after his reported collapse backstage last night.

Love him or hate him, you gotta feel sorry for the guy when he's up against this: