The authorized musical of incomparable gospel singers, The Clark Sisters, recounts the story of the highest-selling female gospel group in history and their trailblazing mother, Mattie Moss Clark (Aunjanue Ellis). Credited with bringing Gospel music to the mainstream, the five Clark sisters (Christina Bell as “Twinkie,” Kierra Sheard as “Karen,” Sheléa Frazier as “Dorinda,” Rav…