"Cry Little Sister" is a song from the "Lost Boys" soundtrack, which completely passed me by in its time.
I had never heard this song till a couple of years ago when I went to the theatre and an illusionist-act used this song. I went home that night and did an internet search for this song and downloaded it. I'd forgotten all about it till it came on my iPod on shuffle during the week whilst I was walking home from work and I had that moment of revelation - "I must put this on Retro Saturday!!"
And so I have.