What is some good extreme taekwondo demo music>?

I would like something up beat and I good beat for the students to keep up with. this is a flashy demo with flips and advanced kicks. I have been trying to find some dubstep or daft punk song...but i just cant find anything. A mix could be good too. If you know of anything (like on youtube or another site) that would be great! That way i can download it! thanks so much!!