VIDEO : Pitch Perfect 3 Adds John Lithgow

John Lithgow will star in 'Pitch Perfect 3'. The 'Crown' actor - who has an extensive background in musical theatre - has signed up to appear in the third installment of the popular musical comedy, Variety reports. Plot details for the latest saga involving a cappella group Barden Bellas is being kept under wraps, so it hasn't been revealed what role John, 71, will play in the movie.