Here's a movie clip from 1944 preformed by the Ross Sisters. Just skip to 55 seconds in unless you like old corny music.
http://www.youtube.com/watch_popup?v=BNR74UCidBI&feature=player_embedded
All I can say is wow. The human body isn't normally supposed to bend like that!
http://www.youtube.com/watch_popup?v=BNR74UCidBI&feature=player_embedded
All I can say is wow. The human body isn't normally supposed to bend like that!