Canadian sensation Justin Bieber has opened up about his emotionally fuelled performance at the recent MTV VMAs and confessed that he seemed visibly moved at the end of his set because he was so overwhelmed by the support. 

During a new interview with Jimmy Fallon, the superstar opened up about breaking down after performing his new song 'What Do You Mean' at the awards ceremony and admitted that they were happy tears:

"It was just so overwhelming for me - everything, just the performance. 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."

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Watch Bieber's full VMAs performance below: