Neil Sedaka sings "Waterbug" from PLAYBOY KILLER (1968)

Weirdly, this is one of TWO Sedaka tracks that made their way into sleazy '60s horror films, but PLAYGIRL KILLER is ever better than his rendition of "The Jellyfish" in STING OF DEATH because Sedaka actually appears and plays a supporting role in the film.  His odd dancing deserves a movie all its own.