The song is called "Pi" and is downloadable off of iTunes or LimeWire, and is by Hard 'N Phirm, available on the CD "Horses and Grasses". The majority of the song only plays a fraction of pi, but the last minute or so is the sound used in the YTMND, and goes really far along decimal-place wise to pi.

FUNNY!

safety...not guaranteed....

funny? um...it kind of gets annoying though...

it looks like a demented conan trying to eat something in front of him...watch out!

um...a nice variation on NSMB...