Along with the Monster Mash, you should be listening to Protest the Hero tonight - Trust me, they'll get you pumped. What I like about them is that they have tons of really intricate fast calculated metal riffs throughout their songs that are mixed with some nice melodic vocals. Usually when the music is this good, all you get are screaming death vocals, but they even have a female vocalist on some tracks. In my opinion, she should be on all of them - With such hard music, and such a sweet voice, they make her sound almost Angelic. With the girl in the band, they kind of sound like what I envisioned Straylight Run to sound like before I actually heard them.