What are your favorite songs that have a message about atheism?

I think the first song I remember hearing that had a clearly atheistic message was Freewill, by Rush.

I found this one more recently: Shine a Little Light, by The Black Keys. I like The Black Keys, but hadn’t heard this album before. The lyrics are describing a person struggling with their faith. I like the part in the second verse about not being recognized by your old community.