Broadway fans know British actress and singer Cynthia Erivo for her starring role in "The Color Purple: The Musical." Erivo won the Tony Award for best leading actress in a musical for her role as Celie. She and the cast are nominated for a Grammy Award this year for best musical theater album. Erivo joins "CBS This Morning" to discuss the impact of the musical. She also receives a special message from Oprah Winfrey.
