Why are new dances always so scandalous? Grinding, freak dancing, swing dancing, rock-n-roll — each had their opponents. But at the beginning of it all was the waltz. We may think of the waltz as classy and performative today, but as it gained popularity in the early 1800s, the dance was called disgusting, dangerous, an “obscene display … confined to prostitutes and adulteresses”, and worse. Why? In this episode, we explore how the waltz got people so riled up, how everyone finally got over it, and what the whole sweaty tale can teach us about the future of scandalous dances.