i think this is the video you guys are referring too. around 4:35 you can see jimmy drool. Had a hard time believing this was actually jimmy when i first saw it he looks like a different person when he's fucked up. he looks and plays like he's either on or coming off of hard drugs.
Anyways in the episode regina monologues the simpsons go to england homer says "There's Jimmy Page, the greatest thief of American black music who ever walked the earth." Disappointing to learn homer's not a fan of jimmy, although he still may be a fan of zeppelin.