the.com/earworm

A song that moved into your skull and never signed a lease.

means A catchy tune or melody fragment that gets stuck in your head, replaying involuntarily over and over.

from A direct, fairly recent translation of the German 'Ohrwurm' (ear + worm), which itself originally referred to an actual earwig, the insect once mythically (and wrongly) believed to crawl into ears. The musical sense — something burrowing into your mind and staying lodged there — caught on in German before English borrowed the term almost intact in the late 20th century.

official term
involuntary musical imagery, coined by psychologists
usual suspects
simple, repetitive, slightly unpredictable melodies stick hardest
cure
finishing the song or chewing gum often stops it
who gets them
musicians get earworms more often than anyone else
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