Emery Williams Jr. (October 26, 1931 – August 9, 2005),[1] known as Detroit Junior, was an American blues pianist, vocalist and songwriter.

He is known for songs such as "So Unhappy", "Call My Job", "If I Hadn't Been High", "Ella" and "Money Tree".

His songs have been covered by Koko Taylor, Albert King and other blues artists.

Born in Haynes, Arkansas,[1][2] Williams recorded his first single, "Money Tree", with the Bea & Baby label in 1960.

Williams began his career in Detroit, Michigan, backing touring musicians such as Eddie Boyd, John Lee Hooker, and Amos Milburn.