I know most folks know the covers instead of the original, so I wanted to single out Gloria Jones, as she does not get enough credit for fronting this song. Her vocals come across as percussive whip-snaps, and the orchestration is incredible. Perfectly Motown. It’s her delivery that has made this song a mainstay to cover in the best way.
I’ll note that she revisited it in 1976, serving up a huskier, more disco-esque version that, while fun, lacks the verve of the original.