Justin Bieber Suffers Concussion After Crashing Into Glass Wall (Report)

Justin Bieber publicity 2012 L
Darren Tieste/CPi

Ouch: Justin Bieber suffered a mild concussion after hitting his head on a wall of glass during his concert in Paris on Thursday.

According to TMZ, the accident happened when the 18-year-old pop prince walked backstage between songs and ran into the wall, becoming disoriented; but he went back onstage and completed the show.

Afterward, he passed out in his dressing room for about 15 seconds. TMZ reported that doctors diagnosed a concussion but said he'd be fine.

PHOTOS: Justin Bieber's Top 10 THR Outtakes

Quoth the Biebs on The Twitter: "thanks for the love but there are alot of people out there who need prayers. im fine. just smacked my head and needed some water. all good."

The "Boyfriend" singer is on tour in support of his latest album, Believe, which will be the subject of an upcoming NBC concert special, Justin Bieber: All Around the World. The special, set for June 21 at 8 p.m. ET, will feature music performances and documentary footage -- perhaps of Bieber's glass-hitting episode.