Kara DioGuardi is one of America’s top songwriters and record producers, having worked with such superstars as Carrie Underwood, Pink, Gwen Stefani, and Britney Spears, and she is currently an Executive Vice President with Warner Brothers Records and co-owner of Arthouse Entertainment. She is best known for her role as a judge of FOX’s American Idol and recently released her autobiography, A Helluva High Note: Surviving Life, Love and American Idol. Now, she’s making her Broadway debut as Roxie Hart in the Tony Award-winning musical Chicago through October 30. TheaterMania recently chatted with DioGuardi about her Broadway debut, life on American Idol, and her multi-faceted career.