Favorite Music to Workout to?

What kind of music do you enjoy listening to while you workout? Be it Rock, Metal, Electronic, ETC, share your music interests here! I want this to become a place to discover new music to exercise to, or even to just listen to when your walking down the street to go get some groceries, or something along those lines. Speak your mind, don't be shy, show us what sparks your "LET'S DO THIS!" mode.

I feel that music is the perfect motivator for anything, really, ESPECIALLY exercise. I mean, how many people do you see jogging, with their iPods (or whatever they may use) plugged in? A LOT, right? Exactly. For me, it's taking something I don't enjoy too much, and adding something I enjoy a lot, which makes it a tolerable task to do! Or, for some people, it makes it an even better activity for them!

Personally, I enjoy heavier-styled music from artists like Memphis May Fire, Miss May I, and The Story So Far. But I also enjoy music on a lighter tone, like Cut Off Your Hands, and various electronic music. Mostly Electro-House.