Experience the Ultimate 420 Festival Celebration with SweetWater's 20th Anniversary Lineup Featuring The Revivalists, Marcus King Band, Greensky Bluegrass, Drive-By Truckers and Cypress Hill at Atlanta's Iconic Pullman Yards from April 18-20, 2025 Celebrating 20 years of music and culture, SweetWater 420 Fest stays true to its roots with a fan-first experience featuring tasty brews and good vibes.