Earworm
Definition 1 of 2

Musical Flaw
An earworm can be enjoyable but may also become irritating if overplayed.

That catchy commercial jingle turned into a real earworm for me.
Psychological Impact
Earworms often appear during times of stress or boredom, indicating underlying cognitive patterns.

I find that earworms usually come to me when I'm trying to concentrate.
Cultural References
Many songs in pop culture are labeled as earworms due to their infectious quality.

The song became famous not just for its lyrics but because of its earworm quality.
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