Could be Pendulum - Slam.
The video has a fat bloke "dancing" in the middle of a busy shopping area.
It's instrumental apart from the intro sample - sounds like Leonard Nimoy, but it might not be!
"Somewhere out there in the vast nothingness of space, somewhere far away in space and time, staring upward at the gleaming stars in the obsidian sky. We're marooned on a small island, in an endless sea. Confined to a tiny spit of sand, unable to escape. But tonight, on this small planet, on Earth, we're going to rock civilization ..."