What’s everyone’s favorite piece of music from a horror film?

I’m listening to the Exorcist theme right now and loving it. That got me thinking: what’s everyone’s favorite piece of music from a horror film? It can be anything from an iconic theme to a piece of public-domain music that you think was used creatively.

I’ll start: my dad is not the biggest horror fan (he doesn’t like buckets of blood, despite Alien being one of his favorite movies), but his ringtone used to be the Halloween theme. I’ve never seen the movie, but the song holds a special place in my heart.

Excited to see what people come up with! Maybe I’ll find some new songs to jam out to.