Justin Bieber Laughs Off Paris Concussion

'I will see u again Glass,' Bieber tweets after hitting his head on a glass wall during a secret show.

When Justin Bieber was in Paris on Thursday (May 31) to perform a secret show for his fans in the lead-up to the release of his Believe album, he got a surprise of his own when he walked into a glass wall, injuring himself mid-set.

According to an interview with TMZ, he bumped into the wall but was able to finish out the performance.

"I was performing, and I was going offstage and, basically, I'm in Paris and performing on the tallest building in Paris, and there's a glass wall behind me, but there's a railing behind the glass. And so I went to reach for the railing and I hit my head on the glass," he explained. "And I guess me and glass windows don't really go together."

He is referring to a viral video of himself going through a glass revolving door where he hit his head from back in 2010. However, this incident was a bit more serious and he added that he "felt lightheaded," but "my adrenaline pushed me through it and I performed the last song."

After he walked off the stage, he passed out for 15 seconds and later learned he suffered a concussion. "I feel good. I feel good," he assured his fans. "I have a little bit of a headache, but I feel fine."

On top of clearing the air with TMZ about the incident, he was able to laugh it off on 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. im Canadian. we are tough. lol. its all good. just gotta take it easy the rest of the night. back at it again for u guys tomorrow. Thanks.

"The fact you all knew what happened before my mom even did is impressive. lol. I have amazing fans. very grateful for your love," he continued. "Gonna eat, rest, get some sleep and tomorrow Im back at it. The show must go on! Love yall. We got this."

Bieber had this message for the glass wall. "I will see u again Glass. I will have my revenge. BIEBER vs GLASS. MGM LAS VEGAS 2013. lol. #GottaLaughAtYourself," he joked.

While chatting with TMZ, Bieber also commented on the pandemonium he stirred up when he performed a secret show in Oslo, Norway, earlier this week, during which several young fans were injured.

"Oh my goodness that was crazy. The fans were insane. I even had to go to this secret location or else they were going to cancel my show, it was crazy," he said. "Norway's been waiting for me to come, and I've never been to Norway. It was nuts."

Despite several minor setbacks on his secret-show tour, Bieber plans to continue his final 10 around the world in the lead-up to the June 19 album release.

When MTV News caught up with Bieber before Sunday's MTV Movie Awards, he threw all his support behind multi-nominee "Bridesmaids." "I just think it was funny. It's kind of like the female version of 'The Hangover,' " he said.

Head over to MovieAwards.MTV.com to vote for your favorite flicks now! The 21st annual MTV Movie Awards air live this Sunday, June 3, at 9 p.m. ET.