Justin Bieber cried at the MTV VMAs because he was overwhelmed

He told chat show host Jimmy Fallon: "It was just so overwhelming for me - everything, just the performancee. I just wasn't expecting them to support me in the way they did. The last time I was at an awards show, I was booed. I think it's just like I've worked so hard at this album and at becoming the man I want to become, and then stepping into situations, you just can't help but feel judged.

"So I was just feeling judged and wanting to win so badly, and wanting to do what I love so badly that I just put everything on the line. And I think that that was what was so special about the emotional moment at the end, that it was authentic. It was real. I was really just wanting it so bad."

However, Justin admitted he wasn't completely happy with his performance, saying: "I missed some cues, so I was a little disappointed at that."