* [[Larry Williams (jazz musician)|Larry Williams]] (keyboards and reeds)
* [[Greg Phillinganes]] (keyboards)<ref name="Carr 2022 b760"/>
* [[Steve Porcaro]] (keyboards, composer on "Human Nature and "The Girl Is Mine")<ref name="Carr 2022 b760"/>
* [[Paul Jackson Jr.]] (guitar, no relation to Michael Jackson)
* The Waters Family (vocal ensemble, Luther Waters, [[Julia Waters Tillman]]. [[Oren Waters]], and [[Maxine Willard Waters]])