This year’s Summer Camp Music Festival is welcoming a new artist into the fold with the addition of Willie Nelson. He joins the latest round of artist additions along with Bassnectar, That 1 Guy, EOTO, Secret Chiefs 3, Future Rock and Chicago Farmer. These performers will join festival mainstays moe. and Umphrey’s McGee as well as: Keller Williams, Medeski Scofield Martin & Wood, Les Claypool, Girl Talk, Gomez, Dark Star Orchestra, Buckethead, Lotus, The Wood Brothers, Junior Brown, Cornmeal, Moonalice, U-Melt, Toubab Krewe, The Bridge, The Macpodz, Family Groove Company, 56 Hope Road and many others. The festival will take place at Three Sisters Park in Chillicothe, IL from May 22-24, with tickets now on sale.