After a 2010 stroke, former Marvelettes lead singer Gladys Horton, 66, died yesterday in a Los Angeles nursing home, Reuters reports.

Signed to Berry Gordy’s Motown during its soulful heyday, the quartet landed the label’s first No. 1 single on Billboard‘s Hot 100 singles chart–1961’s “Please Mr. Postman.” And before leaving the group in 1967, Horton also was featured on other hits like “Too Many Fish in the Sea.”

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