Guess who's back???
Mini rapper slash mini Bieber MattyB has struck back with a brand new cover of One Direction's While We're Young and it is droppin' because it IS mad hawt.
He may be small in stature, but damn can this bird sing.
We're pretty sure this kid is like wine, and is only going to get EVEN BETTER with age!!!
Ch-ch-check it out by clicking PLAY directly (above) !!!