Justin Bieber Begs Paparazzi for Quiet Because He's 'Super Normal'

Justin Bieber worked up a sweat in the boxing ring, and then got all zen on photogs waiting for him outside the gym.

Justin was dripping wet on his way out of Ten Goose Boxing -- the Van Nuys, CA gym where he's been sparring lately, and apparently picking up some wisdom.

He's lectured his fans recently about screaming during concerts, and he echoed that for the paparazzi ... begging them to understand he's just a "super normal" dude.

Bigger concern in this video? That's a LOT of sweat on those leather seats.

#ewww