Make The Music With Your Mouth
By: Biz Markie, Marley Marl
Original Performance: Biz Markie
Written by: Biz Markie, Marley Marl

 
Lyrics:
Make The Music With Your Mouth [Version (a)]:

Make the music with your mouth
Make the music with your mouth
 
The Song:

This is an old school rap song from 1988 by Biz Markie. There is also a newer remake by Rahzel.

Beck didn't really cover it, but he took to singing a little of the chorus in August 2003. Probably because there was usually a beatbox (music with your mouth) section to "Hotwax" during that tour.
 
Live:

Played live 3 times:
Earliest known live version: August 13, 2003
Latest known live version: August 18, 2003

I have heard this in two versions of "Beercan," and once in a version of "Hotwax." Again, it's pretty much Beck just riffing on the title/chorus once or twice and not a real cover.