What do you workout to?

when I went to the gym I was using the time on the elliptical to watch TV shows on my phone I hadn't time to otherwise. My daughter said she was getting a better work out with music so I started that- what a difference!
So far I've been listening to Florence and the Machine- Dog Days are over and The black keys,Dead and Gone, The killers: All These Things That I've Done, My favorite song right now is Gin Blossoms Follow you Down.
I have tried some things like Pandora or Last.fm but find I don't like them as good as my own music.
So here's a quiz of sorts-to give me and others ideas: What do you workout to?

I just read this from someone else,I like it- kind of like the sunburn song:
Someone who is busier than you is working out right now.

There will come a day when you can no longer do this. Today is not that day!

I like the new song by Kelly Clarkson, "Stronger". Otherwise, my MP3 (no I'm not in the land of the IPOD) has "Pain" by 3 Days Grace, "Enter Sandman" by Metallica, and songs by Staind, Papa Roach, and various other artists. I just like things that might push me or have a beat that I can kind of time myself with and get in to. I do like some dance-type music too, depending on the workout. I like to use Pandora on my phone, but there gets a point when I'm finding myself skipping songs and have to switch it up.

Don't stop till you get enough-by mj, get low-lil john the clean version is better, usher-yeah, black keys-lonely boy, old songs but they still get ya pumped up. kiss with a fist-florence&machine, thats not my name-ting tings,

Thanks- just bought 3 mp3's by ting tings- Great DJ, that's not my name and traffic light for cool downs. Not a Kelly Clarkson fan, I'm more of an Aretha's RESPECT type, but I did like 3 days grace. Please keep on suggesting.