Two sources for "earworm"

[Arnold M. Zwicky]

On Wednesday, October 22, 2003, at 07:12 AM, James A. Landau quotes a
dating to 1993 on soc.motss and a claim by a univ. of cincinnati
professor to have invented the term.

Word Spy has a 1987 cite.

it's also a word that is likely to have been translated from the german
many times, by different people independently.  or even invented
independently.

it doesn't seem to be in allen metcalf's Predicting New Words.  i think
it has an excellent future, though.

arnold (zwicky at csli.stanford.edu)