The Sweetwater 420 Fest 2017 lineup continues to build with headlining performances featuring Widespread Panic and the Trey Anastasio Band. Sweetwater 420 Fest will be held at Atlanta's Centennial Olympic Park April 21-23, 2017. Additional acts that have been confirmed include: Ween, Slightly Stoopid, Dirty Heads, Trombone Shorty and the Orleans Avenue, and Dark Star Orchestra. The funk all-stars known as Lettuce are set to perform, as well as Anders Osborne, Twiddle, Savoy, Sister Sparrow and the Dirty Birds, The Hip Abduction and Samantha Fish. This annual festival is sponsored by SweetWater Brewing Company in the heart of Atlanta at Centennial Olympic