If you are big into YouTube, you've probably seen "Chocolate Rain" by Tay Zonday. I didn't find it too funny at first, but then I paid more attention the the lyrics and found a clip of him on Kimmel where he bombs huge.

Original:
http://youtube.com/watch?v=EwTZ2xpQw...elated&search=
On Kimmel:
http://youtube.com/watch?v=NattlyH0I...elated&search=