Organizers for the Pensacola, Florida-based DeLuna Fest announced Monday the have locked up the Zac Brown Band as a headliner for the event, set to take place September 21st through the 23rd.  The country favorites will join previously announced headliners Pearl Jam and the Foo Fighters, providing a Southern flavor to the mostly rock lineup.  Tickets for the DeLuna Fest are available from DeLuna Fest.com, with single-day and weekend passes available in addition to VIP packages and lodging.