Audio cassettes with pre-recorded music were first marketed in the United States in late 1966. The Mercury Record Company first launched the music cassettes with 49 titles.

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Lesley Gore could well have been one of the first of the batch of 49 titles released by Mercury in 1966 according to this catalogue from a delear specilising in the sale of pre-recorded audio cassette tapes.

GORE,LESLEY I Can Cry If I Want To (RE) Mercury MLR-4-8016 1963/80 N $12.99
GORE,LESLEY Golden Hits Of (RE) Mercury 810 370-4 1966/81 N $ 9.99

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