SweetWater 420 Fest will return to Centennial Olympic Park in Atlanta, Georgia on April 20-22, 2018. In addition to previously announced headliners Umphrey’s McGee (x2), Tedeschi Trucks Band, and Sturgill Simpson, The String Cheese Incident (x2) will round out the top bill. Additionally, the SweetWater 420 Fest adds Greensky Bluegrass, SOJA, Ghostland Observatory, The Motet, The Record Company, The Infamous Stringdusters, TAUK, Hirie, Marco Benevento, Brandon “Taz” Niederauer, and more to the previously announced group of Vulfpeck, Joe Russo’s Almost Dead, Stick Figure, Papadosio, Anders Osborne, Spafford, Sister Sparrow & The Dirty Birds, and Southern Avenue.Also tapped for the 2018 edition are Durand Jones & The Indications, Los Colognes, The Mantras (Beastie Boys Tribute Set), The Vegabonds, Maddy O’Neal, Cofresi, Funk You, The Fritz, Walden, The Trongone Band, Luthi, Emma’s Lounge, Quaildogs, Hedonistas, Migrant Worker, Derlee, Hourglass, The Orange Constant, Bird Dog, Jubilee, Universal Sigh, Dr. Strangelove, Bennett Wales & The Relief, with Brandon “Taz” Niederauer as an Artist-At-Large. The weekend will be complete with more than 50 bands, 30 unique SweetWater Brewing Company brews, and “420 vibes.”Tickets are now on-sale here. See below for the complete 2018 SweetWater 420 lineup!