Why Certain Songs Get Stuck In Your Head

You hear the same chorus on the radio, in a reel or at a café. You move on with your day. Hours later, while brushing your teeth or answering emails, the exact same line starts playing inside your head. There is no music playing. Your brain simply decided to press replay.

Your Brain Loves Musical Patterns

Songs are packed with patterns. There are beats, repeated lyrics, melodies and familiar sequences that make music relatively easy for the brain to recognise and predict. A catchy chorus can therefore stay active in your memory long after the actual sound has disappeared.

Repetition makes this even stronger. If a particular line is repeated several times in a song, your brain gets multiple opportunities to encode the pattern. Eventually, you may be able to mentally reproduce it without consciously trying.

You Don’t Even Have To Like The Song

This is perhaps the most irritating part. An earworm does not have to be your favourite song. Sometimes the exact track you cannot stand is the one that refuses to leave your head.

Familiarity, simplicity and repetition can matter more than whether you actually enjoy the music. Hearing a song in a particular situation can also create an association, so a random word, place or memory may suddenly bring the tune back.

Trying To Stop Thinking About It Can Backfire

There is also something slightly cruel about trying to get rid of an earworm. When you tell yourself, “Do not think about that song,” you have to think about the song in order to monitor whether you are successfully avoiding it.

For some people, listening to the entire song can help because it gives the brain the complete musical sequence. Switching to an activity that demands concentration can also pull attention towards something else. Otherwise, you may just have to wait for your brain's unofficial radio station to change tracks.