 And "This Can’t Be Real" is duet with Olivia Newton-John.The second half of the album features songs from the musical "Harmony" based on a true story about the German singing group the Comedian Harmonists.The musical, with music by Manilow and book and lyrics by Sussman, had its world premier at the La Jolla Playhouse and subsequent productions at the Alliance Theatre in Atlanta and the Ahmanson Theatre in Los Angeles.