 was a musical revue, produced by André Charlot with music and lyrics by Noël Coward, which opened at London's Duke of York's Theatre on 4 September 1923.It is famous for being Noël Coward's first publicly produced musical work and for the use of a 3-D stereoscopic shadowgraph as part of its opening act.The revue's song "Parisian Pierrot", sung by Gertrude Lawrence, was Coward's first big hit and became one of his signature tunes.