Classic, Werewolves of London.
See your werewolf and raise you one Bad Moon...
Stir the Witch Queen of New Orleans into the cauldron.
Lunatic Fringe by Red Rider
Vampire Club by Voltaire (Hilarious if you know or are or ever have LARPed.)
Brains by Voltaire
RE: Your Brains by Jonathan Coulton
Living Dead Girl by Rob Zombie
Bloodletting by Concrete Blonde
Dead Man's Party by Oingo Boingo
Stripped by Shiny Toy Guns
Eye of the Zombie by John Fogerty
Burning Hereticby Assemblage 23
Ghost Town by Shiny Toy Guns
Just to name 4 I like.
Here's my render for Werewolves of London.
Here's a few I'm sure I'll think of a few more later.
Monster Mash: https://www.youtube.com/watch?v=1UjvHMXmtfI
The Ghost & Mr. Chicken: https://www.youtube.com/watch?v=nz_crHdfggY
Season Of The Witch: https://www.youtube.com/watch?v=JAzTnsSgs2s
Witchy Woman: https://www.youtube.com/watch?v=1d8hZtvRPno
And of course, my favorite (not really Hallowe'en themed, but it has gotten associated with creepy things):
Black No. 1 and Christian Woman by Type O Negative (actually pretty much anything by them, Sisters of Mercy, Skinny Puppy... just depends what you find 'creepy'- Most people's creepy is my normal lol).
This is Halloween by Marilyn Manson
I Put a Spell on You - http://www.youtube.com/watch?v=7kGPhpvqtOc
One of my favorites! It has been reported that Mr. Hawkins returned from a lunch break drunk and this is what we got. (Of course this isn't really about the supernatural.)
In the classical realm:
Saint-Saens: Dance Macabre - http://www.youtube.com/watch?v=9CHqhsMP80E
Mussorgsky: Night on Bald Mountain - http://www.youtube.com/watch?v=zR2P-5J-2MA
Franck: Le Chasseur maudit (The Accursed Huntsman) - www.youtube.com/watch?v=NGdOEonmGZ0
Schubert: Der Erlkönig - www.youtube.com/watch?v=5XP5RP6OEJI
I reserve the right to post more later.
The Creepshow - "Halloween "
Horrorpops - "Walk like a zombie"
Ramones - "Pet Sematary"
Koffin Kats - "Graveyard Tree"
Devil Woman http://www.youtube.com/watch?v=px7ilisAGj0
There's a ghost in my house http://www.youtube.com/watch?v=1EInKyh5QXQ
entire soundtrack for Rocky Horror Picture Show
Not your typical music but it’s a start.
Mannheim Steamroller Monster Mash http://www.youtube.com/watch?v=jj1NPRoNIrw
and Creatures of the Night. http://www.youtube.com/watch?v=xpWTmGR2T-A
"Lollipop Candy Bad Girl" by Tommy Heavenly6 is a really good Halloween song. :D
Home by the Sea
Bauhaus - Bela Lugosi's Dead (radio/video version) -- (original 10min version)