MGM, however, was the last studio to convert to "talkies" with its first all-color, "all-talking" sound feature with dialogue being the musical "The Rogue Song" (1930). MGM included a sequence made in Technicolor's superior new three-color process, a musical number in the otherwise black-and-white "The Cat and the Fiddle" (1934), starring Jeanette MacDonald and Ramon Novarro. The studio then produced a number of three-color short subjects including the musical "La Fiesta de Santa Barbara" (1935); their first complete feature in the process was "Sweethearts" (1938) with MacDonald and Nelson Eddy, the earlier of the popular singing team's two films in color. From then on, MGM regularly produced several films a year in Technicolor with "Northwest Passage" being one of the most notable.