Varetta Mamie Dillard (February 3, 1933 – October 4, 1993) was an American rhythm and blues singer in the 1950s whose biggest hit was "Mercy, Mr. Percy". == Life and career == She was born in Harlem, New York, and spent much of her childhood in hospital due to a congenital bone condition. By her mid-teens, her condition had stabilised, though she remained unable to walk without crutches or other assistance. She met Carl Feaster of doo-wop group The Chords,... [more on Wikipedia]