Ok, burlesque is not normally on display within the National Park System.
The dancers from the Vau de Vire Society were part of performance art staged in the prison infirmary in conjunction with a Toyota party for Scion owners. The at times risque nature of the party understandably raised some questions about the appropriateness of the setting.
After all, the prison has a long, storied history, one not particularly full of uplifting events. Indeed, among those incarcerated there were 19 members of the Hopi Tribe because they refused to be "Americanized."
You can read more about the Toyota event in this story from the Traveler's archives, and watch the following YouTube video to see more from the event.