in either monaural sound or in a mix culled from an alternate take. A true stereo mix of the original single master was not done until 2005, for The Motown Box, then appearing in 2006 on the compilation Martha & the Vandellas: Gold. Personnel Lead vocals by Martha Reeves Background vocals by Rosalind Ashford and Annette Beard on album version; Betty Kelly on 45 version Additional (harmony) background vocals by The Andantes: Marlene Barrow, Jackie Hicks and Louvain Demps Instrumentation by The Funk Brothers References See also R&B number-one hits of 1967 (USA) List of cover versions of "Jimmy Mack" at SecondHandSongs.com 1967 songs 1967 singles Martha and the Vandellas songs Songs written by Holland–Dozier–Holland Song recordings produced by Lamont Dozier Song recordings produced by Brian Holland Gordy Records singles