The influential author derides secularism and the modern world. Conservatives—including the vice president—are joining him on a march back to the Middle Ages.

Initially, the song wasn’t meant as a duet or trio—until Loretta suggested bringing in Reba McEntire and Carrie Underwood.

Few television theme songs are as recognizable as the haunting melody that opens the classic show M*A*S*H, but behind its ...