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NEW YORK, NY - MAY 13: (Exclusive Coverage) Lady Gaga performs during her "artRave: The Artpop Ball" tour at Madison Square Garden on May 13, 2014 in New York City. (Photo by Kevin Mazur/WireImage)

NEW YORK, NY - MAY 13:  (Exclusive Coverage) Lady Gaga performs during her  "artRave: The Artpop Ball" tour at Madison Square Garden on May 13, 2014 in New York City.  (Photo by Kevin Mazur/WireImage)