Be wary to keep your volume down, and to respect the teams working next to you. With the amount of noise on the field already, I know I personally wouldn't want to come back to my pit and have to endure the music choices of another.

So as long as you check with the teams near you, and don't get shut down by the Pit Admins (like we did a couple years ago), more power to you!

EDIT: To keep this on topic, here are my suggestions:
-Slam by Pendulum
-Paper Planes by MIA
-Click Click Boom by Saliva
-Painkiller by Pendulum
-Undead by Hollywood Undead
-Most Flogging Molly songs

(also, this being from an audiophile: Make sure there's bass! Nothing is worse than listening to a high pitched garbled stream of noise coming from someone's laptop speakers. If it doesn't kick you in the chest when the drummer hits the kick, something's wrong!)