Question: Which musical revue directed by Richard Maltby Jr. is named after a song by Fats Waller?
Sentence (from "Baby (musical)"): Baby is a musical with a book by Sybille Pearson, based on a story developed with Susan Yankowitz, music by David Shire, and lyrics by Richard Maltby Jr. It concerns the reactions of three couples each expecting a child.
Relevant evidence: No