O.K. ... so it's not really Justin Bieber, but this sixth grader sure looks like him ... and he's awesome.
MTV Buzzworthy just posted this vid of YouTube user Greyson Michael Chance playing Lady Gaga's "Paparazzi" during a school assembly -- and he's well on his way to becoming a certified YouTube sensation.
Now if only he could get the girls in the middle row to pay attention ...