(Vocal Collection). Duets for various combinations of voices from The Addams Family * Aida * Avenue Q * Bring It On * Ghost the Musical * In the Heights * Legally Blonde * The Lion King * Little Women * Memphis * Monty Python's Spamalot * Newsies the Musical * Once * Shrek the Musical * Spider Man: Turn Off the Dark * Spring Awakening * 13: The Musical * title of show * Young Frankenstein.