. "6455"^^ . . . "Playbill for the original Broadway production"@en . . . . . . "What's Up?"@en . . "Arthur Pierson"@en . . . . . "What's Up?"@en . . . . . "1055238067"^^ . . . . . . . . . . . . . . . . "What's Up? (musical)"@en . . . "8808323"^^ . . . . . "1943"^^ . . . . "What's Up? is a musical notable as the first Broadway stage collaboration by Lerner and Loewe, with book by Arthur Pierson and Alan Jay Lerner, lyrics by Lerner, and music by Frederick Loewe."@en . . . . . . . . . "What's Up? is a musical notable as the first Broadway stage collaboration by Lerner and Loewe, with book by Arthur Pierson and Alan Jay Lerner, lyrics by Lerner, and music by Frederick Loewe."@en . . . .