Jeffery Deon Estus (July 4, 1956 – October 11, 2021) was an American musician and singer, best known as the bass player of Wham! and as the bassist on George Michael's first two solo projects. Estus' single "Heaven Help Me", with additional vocals by Michael, reached number 5 on the Billboard Hot 100 chart in 1989.

Description above from the Wikipedia article Deon Estus, licensed under CC-BY-SA, full list of contributors on Wikipedia.