The Zac Brown Band will host its Southern Ground Music & Food Festival in downtown Nashville on Sept. 27-28. Confirmed guests include Kenny Chesney, Kacey Musgraves and Willie Nelson, as well as John Fogerty, the Head and the Heart, Jason Mraz, Grace Potter & the Nocturnals, Edward Sharpe & the Magnetic Zeroes and Trombone Shorty & Orleans Avenue. Tickets will be available to the public on Saturday (April 27). Two-day festival passes start at $99. VIP ticketing options are also available.