I got my hands on, of all things, Nelson Riddle's soundtrack to Stanley Kubrick's film version of Lolita. The vocals on this track were actually recorded by Sue Lyon, the 14-year-old girl playing the titular role. The track was released as a 45 in 1962. One one hand, it matches the late-50s/early-60s musical aesthetic pretty well. On the other hand, knowing the content of the novel/film makes this delightfully creepy.