Back in college, I had some friends that were always joking about making "organic techno," or electronica-sounding music just using their mouths. (They weren't very good. They only had one song, which went on interminably. But it was funny.) This is actually called beatboxing these days. Mix Bobby McFerrin with techno, there you go.
Kid Beyond is an incredible beatboxer.
But he's even better when he starts looping on himself, adding tracks and making songs. (I like "Wandering Star," a Portishead cover.) They're real songs. But you'll find yourself wondering whether he can really make all that noise by himself. I did. But here's a live clip that shows him building the layers. Cooool.