<p>Plus, rich people used to keep squirrels as pets and a flooded Colosseum.</p> <p>The post <a href="https://www.popsci.com/science/how-to-get-song-unstuck-from-your-head/">Here’s the secret to getting songs unstuck from your head</a> appeared first on <a href="https://www.popsci.com">Popular Science</a>.</p>