Tyrone Garfield Kersey (April 7, 1949 – January 25, 2005), known as Ron "Have Mercy" Kersey, was an American keyboardist, songwriter, producer and arranger most known for writing the music to "Disco Inferno" by The Trammps.
Kersey was born in Philadelphia, Pennsylvania. He attended and graduated from Edison High School where he sang in the glee club and played football.
