Columbia Masterworks Records by John Gielgud—the longest-running "Hamlet" in Broadway history to date. Columbia Masterworks' most successful Broadway album was the original cast recording of "My Fair Lady" (OL-5090, 1956), starring Rex Harrison, Julie Andrews, Stanley Holloway and Robert Coote. This first album was issued only in mono, but the first stereo recording of "My Fair Lady"—featuring the same four stars, this time with the London cast—followed in 1959. And in 1964, Columbia Masterworks issued the film soundtrack album of the show, starring Rex Harrison and Audrey Hepburn's "singing voice", Marni Nixon. The most successful film soundtrack release on Columbia Masterworks was the
Mary Poppins (film) sections of the film: during "A Spoonful of Sugar," she provided the whistling harmony for the robin, and she was also one of the Pearly singers during "Supercalifragilisticexpialidocious." David Tomlinson, besides playing Mr. Banks, provided the voice of Mary's talking umbrella and numerous other voice-over parts (including that of Admiral Boom's first mate). During the "Jolly Holiday" sequence, the three singing Cockney geese were all voiced by Marni Nixon, a regular aural substitute for actresses with substandard singing voices. Nixon would later provide the singing voice for Hepburn in "My Fair Lady" and play one of Andrews' fellow nuns in