The other is Darkness of the Unknownhttp://www.youtube.com/watch?v=Py0Bl-YusxY by Yoko Shimomura, if I am not mistaken. A fitting final boss theme against Xemnas from Kingdom Hearts 2 if I do say so myself.
First up is a mouthful. Paraskavedekatriaphobia (Friday the 13th) by Fozzy. Friggin' <3 Chris Jericho. I can't pronounce that without going through all the steps @_@ http://www.youtube.com/watch?v=G_ReKCKcfi0
Second is a step way away from anything heavy, taking something from my (and a lot of yours' I'm sure) childhood. The whole song and, by proxy, the whole scene from one Disney movie. They couldn't have found anyone better to play the role of Ursula than Pat Carroll I swear <3 From The Little Mermaid comes one of the better Disney villain songs, Poor Unfortunate Soulshttp://www.youtube.com/watch?v=Vi4o2cG_SsI
...y'all fellow Old Schoolers remember Bruce "The Boss" Springsteen's "Glory Days" video where that one female backup singer kept goo-goo-eyeing him the entire time? Well, eventually, she went on to marry said Boss...AND have one really, REALLY great and vastly underrated solo album called "Rumble Doll." Thus, for your listening entertainment and musical-type edu-ma-cation, I give you "Spanish Dancer" by one Patti Scialfa.