Slipknot has announced Knotfest, a two-day event taking place in two states. On August 17, Knotfest will occupy the Mid America Motorplex in Pacific Junction, Iowa, and on August 18, it'll be at the Somerset Amphitheater in Somerset, Wisconsin. The festival will feature two stages: The main stage will be headlined by Slipknot, with support from Deftones, Lamb of God, Dethklok, and Serj Tankian, while the second stage will be different each day. On August 17, the featured bands will be The Urge, Prong, and Dirtfedd, while on August 18, Cannibal Corpse, Gojira and The Dillinger Escape Plan will take over the second stage. Tickets for both shows go on sale this Friday, June 8, at!

For much more information, check out this interview with Clown at!