Justin Bieber Causes Near State Of Emergency

Justin's was scheduled to perform 4 new songs last night outside Oslo's famed opera house as part of his "Around the World" TV special -- and we're told crazed Bieber fans from all over Europe descended on the city for the event.

We're told the crowds have swelled to such overwhelming numbers, the police lost control -- and are pleaded with Bieber to take the stage early ... before all hell breaks loose.