How am I ever going to explain Ghostbusters to her?

There are certain things that I will never be able to fully explain to my daughter. 

Here's one:

The theme song to the film Ghostbusters by Ray Parker Jr. went to #1 on the Billboard singles chart and stayed there for three weeks.

This is not a song like Celine Dion's My Heart Will Go On, which, for all it's sappiness, does not specifically reference icebergs and diamonds and the sinking of an ocean liner and therefore has an understandable life beyond the movie. 

This is a song that...