An earworm, sometimes known as a brainworm, is a catchy piece of music that continually repeats through a person`s mind after it is no longer playing. Phrases used to describe an earworm include musical imagery repetition, involuntary musical imagery, and stuck song syndrome. The word earworm is a calque from the German Ohrwurm and was, according.... Found on http://en.wikipedia.org/wiki/Earworm