Have you ever had a song stuck in your head that just wouldn’t go away, even when you didn’t want it to be playing on repeat? Chances are, you’ve experienced an “earworm” – a catchy tune that burrows into your brain and plays over and over again without your consent. Lady Gaga’s hit single “Telephone” featuring Beyoncé is a prime example of a song with earworm qualities. But what exactly makes a song like “Telephone” so catchy that it lodges itself in our memory? Scientists have studied this phenomenon and identified several key factors that contribute to a tune becoming an earworm.