Zac Brown Band’s Oct. 19-20 Southern Ground Music & Food Festival has added Widespread Panic’s John Bell and Jason Mraz to their already impressive lineup.

The list of artists already includes Willie Nelson & Family, Band of Horses, The Head & The Heart, Trombone Shorty & Orleans Avenue, Dawes, Kacey Musgraves, Natalie Maines, Fitz & The Tantrums, The Wood Brothers, and sit-in performances with ZBB by Kenny Rogers and Clare Bowen. Bell will be doing a Zac Brown sit-in on Saturday, Mraz on Sunday. Oct. 19. The festival will be at Blackbaud Stadium. Tickets range from $79-$200. For more information, visit southerngroundfestival.com.