Frankie Beverly and Maze is the only act that has performed at Essence Festival since day one. Not only that, the old school R&B/soul/funk faves close the event each year energizing the now-expectant Superdome crowd into a massive line dance that clearly might qualify for a spot in the Guinness Book of World Records. This appearance has become such a tradition that it’s like the proverbial “fat lady”—the festival isn’t over until Frankie B...