David Maas was a magician, TV and YouTube star and, with his wife, the centerpiece of halftime entertainment in basketball arenas all over the country. Maas died on Sunday at the age of 57. According to the New York Times, Maas performed in all 30 NBA arenas, 15 WNBA arenas and at least 76 universities. He also performed at the Big Ten basketball tournament and the Final Four. Maas and his wife, Dania, were famous for the “Quick Change” act where they would perform dances and routines in one costume, then be covered by a tarp, sheet or box and emerge in another costume. In 2014, Sporting News ranked it as the best halftime show in basketball.