The Marvelettes - please mister postman, 1961

"In April 1961, the Marvelettes (then known as the Marvels) arranged an audition for Berry Gordy's Tamla label. Marvels' original lead singer Georgia Dobbins needed an original song for their audition and got a blues song from her friend William Garrett, which she then reworked for the group. Dobbins left the group after the audition and was replaced. Gordy renamed the group and hired "Brianbert" – Brian Holland and Robert Bateman's songwriting partnership – to rework the song yet again. Freddie Gorman, himself a Detroit postman and another songwriting partner of Holland (before Holland became part of the Holland–Dozier–Holland team) was also involved in the final reworking."