Emery "Detroit Junior" Williams, Jr. (October 26, 1931 – August 9, 2005) was an American, Chicago blues pianist, singer, 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 a.o. Koko Taylor and Albert King. Born in Haynes, Arkansas, Detroit recorded his first single, "Money Tree" with the Bea & Baby Records label in 1960.

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