Phi-Phi is an opérette légère in three acts with music by Henri Christiné and a French libretto by Albert Willemetz and Fabien Solar.
The piece was one which founded the new style of French comédie musicale, the first to really use the latest rhythms of jazz (one-step, fox trot) along with a plot which emphasised comedy – with risqué dialogue of puns and anachronisms – more than the romantic style, which had predominated before. Phi-Phi opened on 12. November 1918, directly after the end of the First World War, at the Bouffes-Parisiens. After about three months it became a major hit, running for three years.
Easy to remember: November 12th, 1918: Proclamation of the Republik in Austria by the Provisorische Nationalversammlung in Vienna.
It also led to a spate of similarly titled stage works: Clo-Clo, Dédé, You-You, Pan Pan.
A 1922 London production, in English, was very successful.