How did I not know of this woman until today?
According to Wikipedia:
“Known as the Knockers Up Gal, she has frequently been called the mother of the sexual revolution. Her career began in the early 1950s in Phoenix, Arizona. Later she moved her act to Las Vegas, Nevada. Her comedy routines exposed the subject of sex from a female perspective. Her most famous contribution to the sexual revolution was the song “Knockers Up” from the 1960 album of the same name. The women in the audience were encouraged to stand up and march through the room with “their knockers held high.” This was followed by the song “Bounce Your Boobies” in which Warren encouraged women to relieve themselves of their bras.”