Brace yourselves: the dudes over at Mad Decent are gearing up for their annual Block Party and with the line-up they announced yesterday, things are definitely going to get loud, probably crazy, and certainly awesome. This year, names gracing Penn’s Landing’s Great Plaza include Major Lazer (of course), as well as Bonde Do Role, Riff Raff, DJ Sega, Reptar, POPO, and others. If you’re all about the new-school electronica, hip-hop, and experimental wave, this is the train you don’t want to miss. The Party goes down from noon to 9pm on August 4th. The event is free for all ages, but an RSVP is required (you can RSVP here). For more information — including the full line-up — check out the Facebook event page.