Gregg to Sit In with Zac Brown Band in Nashville Articles / None Posted by Rowland on Sep 14, 2012 - 10:42 AM [1] Gregg will be sitting in with the Zac Brown band for two songs on Saturday night, September 22, 2012, at the Southern Ground Music and Food Festival in Nashville, TN. Should be a fun event, hope y'all can come by and enjoy it! This article is from Hittin' The Web with The Allman Brothers Band   https://www.hittintheweb.com/ The URL for this story is:   https://www.hittintheweb.com/modules.php?op=modload&name=News&file=article&sid=841 Links in this article   [1] http://www.southerngroundfestival.com/welcome-nashville.html