When Suwannee Hulaween announced their lineup earlier this year, there was one glaring question mark on the list of artists… the “Suwannee Bluegrass surprise.” The festival, which is set to take place from October 31-November 2nd at Live Oak, FL, already had a tremendous lineup, with headlining performances from String Cheese Incident, Thievery Corporation, Big Gigantic, Beats Antique, the New Deal, Joe Russo’s Almost Dead, Shpongle.

Well, the lineup gets even better. Keller Williams & Friends has been announced as the festival’s bluegrass surprise. Williams joins an excellent, diverse lineup, for what will surely be a fun Halloween getaway.

Additionally, the festival has added MZA and Yo Mama’s Big Fat Booty Band to their Thursday night pre-part festivities. For more information, including tickets and daily schedules, be sure to check out the festival’s official website.