The best music to work out to

It seems that the lyrics need to be uplifting and the beats fast. I think research should continue and actually 'prove' what the best playlist for what type of workout that you are doing. It would even be cool to have it broken out by genre.

I have found that I listen to different music based on what I am attempting to do. Doing chores - Jazz, Working - ES Posthumus is the best working music yet. Though if I get into a rut that requires some whiteboard time it is hard to say or type if but if I put a little Elvis on it usually does the trick. Working out - something aggressive like Disturbed works well for me.

What sounds make your background track for the various areas of your life?