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Justin Bieber Suffers Concussion at Paris Concert

Jason LaVeris/FilmMagic(LOS ANGELES) -- Justin Bieber suffered a concussion Thursday while staging a concert in Paris.

Bieber tells that during his set, he walked backstage and into a wall of glass.  He says he felt disoriented but returned to the stage.

Following his performance, he says, he passed out and was subsequently diagnosed with a concussion.

The singer tweeted, "im fine. just smacked my head and needed some water. all good. im Canadian. we are tough. lol. its all good. just gotta take it easy the rest of the night."

Bieber's concert in Paris came one day after he held a free show in Oslo, Norway. reports 49 teenage girls were injured and 14 people were taken to the hospital due to the commotion caused by the concert.  The mayor of Oslo says he is launching an investigation into the chaos.

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