MTO WORLD EXCLUSIVE: Justin Bieber Had An ‘ACCIDENT’ While On Stage With Nicki Minaj . . . He Accidentally SPLASHED HIMSELF!!! (PHOTOS . . . Details And EVIDENCE)

: just spoke with a PRODUCTION ASSISTANT who worked backstage at last night’s American Music Awards. And the assistant tells us that Justin Bieber had an ACCIDENTAL INCIDENT in his pants, while dancing with Nicki Minaj.

It all went off during Justin’s performance. Everything looked FINE from the audience, but it did appear that Justin was VERY into the performance. But after the performance, Justin rushed off stage and had an ODD request – he needed to change his PANTS immediately.

The production assistant explained to, “He was rushed to his dressing room and he changed and took a shower. Then he came out, about ten minutes later, to accept his award.”

As the bottom photo shows, Justin put back ALL THE SAME CLOTHES, except his pants – when he accepted his Best Pop/Rock Album award.