The closest I've gotten is this: It's a bit of music written solely for the show. It seems it has been used earlier in the show, tho the 'when' of it escapes me.
Eye Of The Tiger by Survivour :)
Yellow fever, season 4, episode 6
He sings Eye of the Tiger in season four episode 6 titled yellow fever
"I am Furious Yellow", season: 13, episode: 18
The yellow-eyed demon Azazel is killed by Dean using the Colt in the season two finale. Wanna find out more about supernatural? Go to http://www.supernatural-the-series.blogspot.com
Ash Battles Gary on Episode 272-273 Pokemon Season 5 : Master quest episode 60-61 This is the silver tournament or what ever they call it and its the fight between Blastoise and Charizard, best Pokemon battle I have ever seen in this show
Yellow fever, season 4, episode 6
= Survivor - Eye Of The Tiger (with lyrics) =
He sings Eye of the Tiger in season four episode 6 titled yellow fever
Dean kills the Yellow Eyed Demon in the season 2 finale
"I am Furious Yellow", season: 13, episode: 18
yellow
I Am Furious (Yellow) episode 287 season 13
Angry dad, or treehouse of horror the incredible bulk
The yellow-eyed demon Azazel is killed by Dean using the Colt in the season two finale. Wanna find out more about supernatural? Go to http://www.supernatural-the-series.blogspot.com
Oh Yeah by Yellow &Hippy Hippy Shake by The Beatlesare heard at the start of the episode.
Many fans consider the episode "Yellow Fever" from Season 4 to be one of the scariest episodes of Supernatural. It features Dean being haunted by his fears and slowly losing his sanity due to a ghost sickness. The eerie moments and psychological horror make it a stand-out scary episode for many viewers.
Yellow eyed Demon. a yellow caca lollolo