Eclipse In Music

I am looking forward to the upcoming eclipse tomorrow.  I must admit, that until I heard Carly Simon sing You're So Vain, I never even contemplated it.  There are other songs that reference eclipses.  What was she really singing about...really?  The eclipse was just one of the versus.
 
I hope she continues to add versus as they come to her.  What a great voice.  What a great message.  What a great mystery.