 Lottie Collins sang her sensationally popular song, "Ta-ra-ra Boom-de-ay" as an interpolation in the show every evening.The title was a "playful allusion" to the real first name, Ellen, of the Gaiety's famous star, Nellie Farren.After the company's return from Australia, and before the opening of "Cinder Ellen" in London, Farren experienced an attack of rheumatic fever which aggravated her spinal disease.