Although I just figured out today that both versions were produced by Norman Whitfield, who also co-wrote the song. He was a resident producer at Motown at that time. So he basically re-recorded the song changing the bands — but also The Temptations’ album version is much longer than the one with The Undisputed Truth.
It’s a cover, btw. The original is by The Undisputed Truth.
Bonus fact: Edwin Starr’s ‘War’ is a cover of The Temptations.
TIL
Although I just figured out today that both versions were produced by Norman Whitfield, who also co-wrote the song. He was a resident producer at Motown at that time. So he basically re-recorded the song changing the bands — but also The Temptations’ album version is much longer than the one with The Undisputed Truth.