Literally? Or he acts like one?
He was a dancing boy in Afghanistan. http://www.dailymail.co.uk/news/article-2646192/EXCLUSIVE-Bowe-dance-Taliban-POWs-ballet-teacher-reveals-Bergdahl-not-typical-rough-tough-soldier-moves-learned-helped-survive-ordeal.html
https://en.wikipedia.org/wiki/The_Dancing_Boys_of_Afghanistan