William Guest, American singer-songwriter and producer (d. 2015)
William Franklin Guest (July 2, 1941 – December 24, 2015) was an American R&B/soul singer best known as a member of Gladys Knight & the Pips along with his cousins Gladys Knight, Merald "Bubba" Knight and Edward Patten. Guest was a member of the group for its entire history from 1952 to 1989. He is a multiple Grammy Award winner and was inducted to the Rock and Roll Hall of Fame with Gladys Knight & the Pips in 1996.