Question about this movie's soundtrack

I am hoping that some of you can help me locate the details of what may be an obscure song from the era this movie was produced in, a song where only a few lyrics were heard in one of the scenes.

Right after Jayne finally agreed to go out with Leon, there was a cut to a brief scene (lasting only a few seconds) where the two of them were dancing together in a night club. They were dancing to this song that had the lyrics, "angel baby..." in it. For a long time now, I have been trying to locate the precise name of that song and who the singer was so that I can purchase the mp3 for it online. Does anyone know the title and composer of that song? I am sure that if you saw the movie, you will recall this brief scene and the lyrics playing over it.

Thank you ahead of time to anyone who can help me acquire this info.