Why Songs Get Stuck in Your Head — And the Counterintuitive Way to Evict Them

Earworms aren't random. Your brain is desperately trying to finish something.

One catchy chorus in a store, and suddenly it's playing in your head on repeat for three days. Scientists call them earworms, and they hijack almost everyone.

Songs that stick tend to share a formula: simple, repetitive melodies with one slightly unexpected twist. Easy enough to replay, surprising enough to nag at you.

The loop is often driven by incompleteness. If you only know the chorus, your brain treats the song like an unfinished task and keeps reopening the file.

Which suggests the escape hatch: listen to the whole song, all the way to the end. Give your brain closure, and it can finally mark the task complete. Chewing gum reportedly helps too — it keeps the 'inner singing' machinery busy.