This year's Hard Summer Festival lineup is pretty damn stacked. The two-day event, which goes down Aug. 3-4 in downtown Los Angeles, features the likes of Skrillex, James Murphy, and Bloc Party. And the last of those acts have put together a killer one-hour mix primed for the dance floor. Get ready for plenty of huge beats, driving synthesizers, and even a well-placed Imogen Heap track. You can stream the mix below and get more Hard Fest information here.