Justin Bieber Collapses In London — Rushed to Hospital

Exclusive Details 0306_bieber_getty_articleJustin Bieber was rushed to a hospital in London moments ago … after collapsing backstage during a concert … our sources has learned.

A source close to Justin tells us the singer felt woozy during the show at the O2 Arena … and with 4 songs to go, he stumbled backstage where he collapsed.

We”re told the singer was pulled into a private room where he was treated with oxygen from emergency personnel.

Sources say Bieber was advised to go to the hospital … but declined … insisting that he “had to finish the show for his fans.”

That”s when Bieber”s rep, Scooter Braun, went on stage on told the crowd … “Justin”s got very light breath. The whole show he’s been complaining, He’s backstage with the EMTs and the doctor.”

A short time later, JB returned to the stage … completed the show … and got a HUGE ovation.

Justin was transported to the hospital directly following the show … and we”re told he”s still there receiving treatment.

We”re told he”s in good spirits and feels OK … but doctors want to evaluate him.

Bieber didn”t appear too sick last night … when he was running around London while sporting a gas mask.  Maybe he should leave it at home from now on.