"Harper Valley PTA" is a country song written by Tom T. Hall that became a hit single for country singer Jeannie C. Riley in 1968.Selling over six million copies as a single, the song made Riley the first woman to top both Billboard's Hot 100 and the U.S. country single's charts with the same song, a feat that would go unrepeated until Dolly Parton's "9 to 5 " in 1981.