Cirque du Soleil Crystal™ — A Breakthrough Ice Experience will be in Allentown from June 26-30 at PPL Center. Watch world-class ice skaters and acrobats claim their new frozen playground with speed and fluidity as they challenge the laws of gravity with never-before-seen acrobatics. A new kind of performance as Cirque du Soleil meets the ice to defy all expectations. Crystal – an exhilarating journey of speed, wonder, and discovery!