In "Gigi" Hermione Gingold is Maurice Chevalier's partner for this duet; ah, yes...
... H: Ah, yes, I remember it well [DOC] [TLE] Memory in Later Life Partnership Project ... - Frankfurter Verband [PAR] Published by the partners of the Memory in Later Life Project ...... Frankfurt sang 
the Maurice Chevalier/ Hermione Gingold duet from Gigi (1958) entitled Ah yes!