What is this bouncy, rhythmic, danceable, by music?

I was waiting for The Prodigy at Ruisrock in Finland, and they had the awesomest music playing in the background. It had strong b beats, it was really rhythmic and it just made it impossible to not dance to it. Here's a a somewhat poopy sample: http://www.youtube.com/watch?v=hs4RFzH6i1k