Recommendations: Good coding music?

While I'm writing code for applications I can't seem to find music that keeps me focused on the code. I want something that gives me the energy to get through a hardcore coding session (One application in 24 hours lol) A lot of energy but still good music. I know theres a bunch of programmers here, but this can apply to anyone, artists or whatever. What's good music for working on some kind of project?

And...go!