Four-time Grammy winner, Tony nominee and Opera star Renée Fleming talks to Aedín Gormley about making her long awaited London musical theatre debut in 'The Light in the Piazza' by Adam Guettel – grandson of Richard Rodgers. They talk about making the transition from opera to musical theatre, how musical theatre is not necessarily easier than opera, what attracted her to this role, her feelings on singing 'You'll Never Walk Alone' in Carousel on Broadway, the wide variety of roles she takes on, how she has turned up on film soundtracks and her admiration for Maria Callas.