Justin Bieber Accidentally Gives Irreplaceable MuchMusic Award to Fan

Justin Bieber loves his screaming teenage fans so much, he will literally hand them an extremely limited edition award he just won -- without even realizing it -- at least that's what happened this weekend.

Bieber was in Toronto Sunday for the MuchMusic Video Awards -- and when he left the stage after accepting his trophy for UR Fave Artist ... he was accosted by several fans in the front row.

Bieber pump-faked with the award -- but a girl latched on to it, so Bieber handed it over ... obviously thinking she was an extremely young, extremely loud award show official.

But she wasn't -- and the random girl was later approached by a REAL award official, demanding she return the trophy ... which she did.

But Justin feels bad for getting the girl's hopes up -- his rep tells TMZ, Justin wants to track the fan down and get her a replica of the award. So far, the girl hasn't come forward.