Here, DioGuardi chats about the difference between pop music and musical theatre. The performer departed "Idol" following the show's ninth season.
In her limited run with Chicago, DioGuardi performs alongside Amra-Faye Wright as Velma Kelly, Tony Yazbeck as Billy Flynn, Chris Sullivan as Amos Hart and Carol Woods as Matron "Mama" Morton.
To check out the interview with DioGuardi, look below: