Summer Camp Music Festival Adds Over 60 Live Acts to the 2018 Lineup Organizers with the 18th Annual Summer Camp Music Festival have recently announced their third wave of artists for the 2018 event taking place May 25-27 in Chillicothe, Illinois. Moe. and Umphrey's McGee will return to north-central Illinois for four days of live music on Memorial Day Weekend. The lineup currently provides guests over 150 acts to check out. Attendees from all over the country and various sections of the globe will collectively join for music, art, environmental awareness, and connecting with people that share similar tastes. The Summer