"Harper Valley PTA" was released in 1968. Written by Tom T. Hall, the single immediately became a hit for Riley and went to top both the "Billboard" Hot 100 and Hot Country Songs charts, a feat not repeated by a female artist until Dolly Parton's 1981 hit "9 to 5". The track is about a widowed woman by the name of Mrs. Johnson, who confronts a group of members of the PTA after her daughter brings home a note from school that is critical of her mother's (Mrs. Johnson's) habits of wearing miniskirts, going out with men, and other behavior of which they do not approve. The climax of the song comes when Mrs. Johnson turns the tables on the PTA and exposes their hypocrisy one member at a time, noting that their private behavior is far worse than what their letter criticized her for.