Justin Bieber FLIPS OUT at Photog — ‘I’ll Beat the F**k Out of You’


Justin Bieber“s feeling better — in fact, he”s feeling good enough to FIGHT … “cause he just went after a photog in London … and screamed, “I”LL F**KING BEAT THE F**K OUT OF YOU.”

Bieber — flanked by bodyguards — was leaving the Central London hotel moments ago … and in the mad scramble to his SUV, he made contact with a waiting photog.

The photog — clearly upset by the physical contact — immediately claimed he was assaulted … and began to cuss out Bieber, who was already inside the waiting SUV.

But Bieber clearly heard the photog”s insults (“f**k off back to America”, “f**king little moron”) … “cause the singer opened his SUV door and sprung out of the car … trying to attack the photog.

While Bieber”s bodyguard held him back, the singer screamed … “What the f**k you say”

The photog shot back — “You heard what I said … you heard what I f**king said, mate.”

Bieber replied, “I”ll f**king beat the f**k out of you.”

Justin tried to swing at the photog, but his bouncers kept the singer at bay … and eventually pushed him back inside the SUV.

The car left the scene without further incident.

Bieber just tweeted about the incident … saying, “Ahhhhh! Rough morning. Trying to feel better for this show tonight but let the paps get the best of me.”