Ever had a song stuck in your head all day? You’re brushing your teeth, tying your shoes, and—wait! That same chorus is still playing over and over!

That’s called an earworm! And no, it’s not a real worm. It’s just a nickname for when a catchy tune gets stuck in your brain.

But why does it happen? Scientists think it has to do with patterns. Songs that are simple, repetitive, or have a bouncy rhythm are easier for your brain to remember. Your brain loves patterns, so when it hears a catchy one, it hangs on tight!

Also, if you hear a song a lot—on TV, at school, or on the radio—it can sneak into your memory and pop back up later when you least expect it.

Want to get rid of it? Try chewing gum (yes, really!), solving a puzzle, or listening to a different song—something not as catchy.

But hey, sometimes an earworm is just your brain throwing a little dance party. So go ahead—sing along one more time!