PERTH, AUSTRALIA - AUGUST 20: (EXCLUSIVE COVERAGE) Lady Gaga performs on stage during the "artRave: The Artpop Ball" Tour at Perth Arena on August 20, 2014 in Perth, Australia. (Photo by Paul Kane/WireImage)
PERTH, AUSTRALIA - AUGUST 20: (EXCLUSIVE COVERAGE) Lady Gaga performs on stage during the "artRave: The Artpop Ball" Tour at Perth Arena on August 20, 2014 in Perth, Australia. (Photo by Paul Kane/WireImage)