Lil Uzi Vert Puts Beating on Teen Viral Sensation Matt Ox

Lil Uzi Vert has showcased his hands in the past. This time, he pops up in a new video boxing 12-year-old rapper Matt Ox, according to TMZ.

In the clip, Lil Uzi -- who is 23 btw -- beats the brakes off the teen rapper in an in-studio sparring session.

Lil Uzi is just about the same size... but its unclear why he's going so hard on a 12 year old.