Watershed 2018 Lineup: Blake Shelton, Brad Paisley, Brantley Gilbert and More!Watershed 2018 Lineup: Blake Shelton, Brad Paisley, Brantley Gilbert and More!Artists have just been announced for the Aug. 3-5 Watershed Music Festival at the Gorge Amphitheatre near George -- and we have the list! Gunner JacksonGunner Jackson