Lady Gaga demonstrates the Volantis transport prototype "flying dress" designed by TechHaus - Studio XO during the ARTPOP album release and artRave event at the Brooklyn Navy Yard on Sunday, Nov. 10, 2013 in New York City. (Photo by Evan Agostini/Invision/AP)NEW YORK (AP) — Girl Gaga's album sales are already stratospheric, so why now not her night wear?