Kennedy Gordy (known as Rockwell) was a member of one of the great Motown dynasties of all time. Active from 1971 through 1986, he was mostly a one hit wonder, as this song was his only major hit. He reactivated his musical career in 2018.
Temperament that it hits on: Melancholic
This song hits on my melancholic because the melancholic temperament tends to be more timid, suspicious, and careful. Oftentimes, they may be worrying about nothing; at other times, they may be the first ones to discover a conspiracy.
It is quite fitting that this song came out in 1984. It was very intentional, I believe.