Hahaha, this is amazing.

It's funny but I bet it's fake. It would be easy to sample a fart sound and play the melody. What gives it away to me is that the stereo sounds like crap, like it would being recorded by a camcorder mic, but the hand farts are crystal clear... where's the mic on those?
 
None of that matters. What matters is his smarmy "check my shit out, yes indeed I am infact the man because I can make musical fart noises with my hands" facial expression.