Dolly Parton's side gig as a children's author continues. The singer is set to publish "Dolly Parton’s Billy the Kid Dances His Heart Out," the third children’s picture book in Parton’s New York Times bestselling series featuring the French bulldog Billy the Kid. It follows 2023's "Billy The Kid Makes It Big" and 2024's "Billy The Kid Comes Home For Christmas." The new book comes out December 2nd.