The annual Mad Decent Block Parties have announced their return for 2017, its tenth year. Over the years, MDBP expanded from one free day in Philly to a massive touring party that happens all over the world. To celebrate the tenth anniversary, MDBP is dialing back and only doing two parties this year: one in its hometown of Philly on July 7 and one at Red Rocks on September 3. (That means none in NYC like previous years.)

Label head Diplo headlines the Philly party, which happens at Festival Pier and also includes Flosstradamus, 4B, Nadastrom, Swizzymack, Matt Ox, and more TBA. Register here for a chance to get tickets for only $10, starting June 15 at 10 AM EST.

Diplo's Major Lazer headline the Red Rocks show, which also includes Alison Wonderland, Cashmere Cat, Slumberjack, and more TBA. Register for presale here. Tickets go on sale June 15 at 10 AM MT.

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