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If you thought Justin Bieber's tears at the end of his VMAs performance on Sunday were because his harness was too tight, we're afraid you'd be wrong.

The What Do You Mean singer revealed to Jimmy Fallon last night (September 2)that it was all because he 'wanted it so bad', having not performed at the awards show for five years.

"It was just so overwhelming for me," he explained. "Everything, the performance. I missed some cues so I was a little disappointed with that. Honestly, I just wasn't expecting them to support me in the way they did."

AWW.

He went on to add: "Last time I was at an award show I was booed. I think it's just like, I worked so hard at this album, I worked so hard at becoming the man I wanna become, and then stepping into these situations you can't help but feel judged."

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

"I just wanted it so bad."

Well we just fell in love with him a little bit more.