The Dancing Millionairess(1964)

Chen Hou is a chauffeur who gets caught in a mistaken identity scandal linking him to businesswoman Lok Dai. Chen was supposed to audition for a job as her chauffeur, but a proposed musical show is far more attractive to the aspiring dancer. When a rumor gets out that the two are involved in an affair, she's angry and confronts him, but his charms overwhelm her, and it's revealed that she too desires to dance. Soon she's bankrolling the affair, the sets are being built, and the singing and dancing begin!