At the Italian edition of Big Brother a model (Mario Ermito) was speaking about his experience with Lady Gaga on the set of a music video. Shortly before the italian date of the Born This Way Ball (October 2012), she apparently shot the MV for the ARTPOP track Donatella, in the Versace Palace. The clip, filmed but never officially released, featured Gaga going down the stairs and dancing with many dancers dressed with armors. The video included Donatella herself.
Conclusion: ARTPOP h