Want to see the next Erykah Badu? Join AT&T Performing Arts Center for Sammons LunchJam, a free event supported by Neiman Marcus that features performers from Booker T. Washington High School for the Performing and Visual Arts. Spice up your lunch hour with Dallas’ best food trucks, or bring your own picnic to Elaine D. and Charles A. Sammons Park, right outside the Winspear Opera House.