Looking for dark themed songs, can be from classic to modern. I wouldn't mind anything, as long as it's probably more guitar oriented and not so hard on the vocals. I would even like some metal too if possible.

It's for a high school pep assembly. Apparently, the theme is based on the movie "The dark knight". They wanted us to play a song that would fit the theme, even if it's not batman related. Basically songs that have dark melodies, dark power chords, dark lyrics, etc. Nothing that wouldn't be school inappropriate(slicing your wrists, killing people, etc )