Justin Bieber collapsed during his concert in London last night with a few songs left to go. He started feeling dizzy, so he went backstage. According to reports, he "collapsed." Emergency teams showed up and gave him oxygen. They suggested he go to the hospital, but he insisted on finishing up the last few songs. His manager Scooter Braun told the crowd, "Justin got very light of breath. The whole show he's been complaining. He's backstage with the EMTs, and the doctor." Watch him on stagehere. Later, Justin Tweeted, "Getting better. Thanks for everyone pulling me through tonight. Best fans in the world. Figuring out what happened. Thanks for the love." And on Instagram, he posted an unnecessarily sexy picture of himself lying in his hospital bed . . . with his gown pulled down, so he's just shirtless and in his underwear.Here's the picture