In 2013, McDonald appeared in the HBO documentary Six by Sondheim, and she played Mother Abbess in the 2013 NBC live television production of The Sound of Music Live!.Audra McDonald, Laura Benanti and Christian Borle Join Cast of NBC's Sound of Music Playbill, Retrieved September 16, 2013'Sound of Music Live!' with Carrie Underwood: NBC announces more cast, releases poster Entertainment Weekly, Retrieved September 16, 2013
