Lettuce, Cornmeal, Big Gigantic, Taj Mahal, GRiZ and more will play the 2013 Summer Camp Music Festival. The event will take place May 24-26 at Three Sisters Park in Chillicothe, IL. As previously reported, the festival also confirmed that Trey Anastasio Band would play two full sets at this year’s event. Summer Camp regulars moe. and Umphrey’s McGee will also play multiple sets. The news came today via the festival’s Facebook and Twitter pages as part of a controlled leak prior to the full initial artist announcement, which will come this Friday at 5pm CST. More artists will be leaked tomorrow as well. You can read our recap of the 2012 Summer Camp Music Festival here.