'The Sound Of Music': First Look At Carrie Underwood As Maria; Audra McDonald, Laura Benanti, Christian Borle Join Cast

"The Sound of Music" has added Audra McDonald, Laura Benanti and Christian Borle to its cast. Carrie Underwood and Stephen Moyer lead the NBC musical special's cast. "Private Practice" star McDonald, who has won five Tonys, will play Mother Abbess. Benanti, known to NBC viewers for her work on "Go On" and "Law & Order: SVU," will paly Elsa Schrader. She previously won a Tony for "Gypsy." "Smash" star Borle will play Max Dettweiler and recently took home a Tony for "Peter and the Starcatcher." Un...