Norwegian authorities were close to declaring a state of emergency in capital city Oslo when World superstar Justin Bieber hit their shores to perform a mini free concert.

Police and security officials became concerned when hundreds of thousands of screaming Bieliebers flocked to the area surrounding the Opera House, where the star was set to perform, blocking roads and perching themselves precariously on rooftops in an attempt to catch a glimpse of the star. There was even an entourage of small boats pulled up into the harbour stuffed almost to sinking point with fans.

Justin, who was in Norway as part of his ‘Justin Around The World’ TV special, was forced to threaten to cancel the gig in order to retain a sense of calm in the capital and prevent anyone becoming seriously injured. The star took to Twitter and said, ”Norway – please listen to the police. I don’t want anyone getting hurt. I want everything to go to plan but your safety must come first…for the show to happen you must all listen to the police. We are all concerned for your safety and I want what is best for you. please listen and tonight we will have some fun. Love you and I’m excited to see you all.” Justin’s manager added to his own Twitter timeline saying,“The streets are filled. The bridges are closed. It is out of control. We may have to start the show early or they will cancel.”

The show did eventually go ahead with Justin performing four tracks to a packed Opera House.