OSLO, NORWAY (CNN) - Bieber mania turned dangerous in Norway injuring 49 teenagers were injured when a group rushed to see the singer give a free concert. The Oslo city mayor nearly declared a state of emergency as tens of thousands of girls mobbed the streets to see Justin Bieber.
The singer even urged the fans to keep safe. The mayor is even launching an investigation to see what went wrong.
The mayor said it got so bad he had to hide behind a tree at one point to avoid getting trampled.
TMZ even has a picture of people trying to use inflatable rafts to reach the stage.