95 More Songs of Summer - "Luka"

The biggest hit that Suzanne Vega ever had (and probably the biggest she'll ever had) succeeds in part because of its contradictions - first and foremost it's a pop song, one with a memorable melody that would stick with you regardless of what Vega happened to be singing about.  But since she happened to be singing about domestic child abuse (and women, I'd argue, although the video focuses on the former), you couldn't help but think about the message of the song, even as it bore its way into your brain.  This kind of thing probably wouldn't work all of the time, but in this instance it was an unqualified success.

"Luka," Suzanne Vega, from the summer of 1987.