[Paul Is Dead]

A lot of Mars Volta songs are quite creepy, have an amazing story line, and are in Spanish.

Sigur Ros are very good, most of the time they sing in Icelandic, or something like that.

Goodspeed You! Black Emporer has no vocals.

Explosions in The Sky/Pelican aren't creepy, per say, but still set an awesome mood.



Hope that helps.