Ok, I found this the other day. http://foodsafe.ucdavis.edu/FSM_Source/HTML_Source_FSM/lyrics.html#FSM
It's a site about food safety - only this guy's taken a whole lot of songs (Stayin' Alive, by the BeeGees. I Will Survive, by Gloria Gaynor. Under The Boardwalk, by the Drifters. Just to name a few), and changed the lyrics to songs about food safety. And he's also done We Will Rock You and We Are The Champions.
The songs are hilarious - not so much because of the lyrics, but basically because of how he sings them. He's such an awful singer. Plus, the music video is pretty funny :-)
Four old ladies, still rocking away :)