Willie James Mabon (October 24, 1925 – April 19, 1985) was an American R&B singer, songwriter and pianist, who had two number one hits on the Billboard R&B chart: "I Don't Know" in 1952 and "I'm Mad" in 1953.
Willie James Mabon (October 24, 1925 – April 19, 1985) was an American R&B singer, songwriter and pianist, who had two number one hits on the Billboard R&B chart: "I Don't Know" in 1952 and "I'm Mad" in 1953.