Lady Gaga prepares to walk in Marc Jacobs New York Fashion Week show by doing push-ups in her underwear. Gaga cheekily flashed her bottom in a black .brWe all know models work hard to prepare for a big fashion show and now Lady Gaga shows of some of the shinanigans that hey have to go through before a .brLady Gaga prepares to walk in Marc Jacobs New York Fashion Week show by doing push-ups in her underwear. Gaga cheekily flashed her bottom in a black .brWe all know models work hard to prepare for a big fashion show and now Lady Gaga shows of some of the shinanigans that hey have to go through before a .