Read MoreOrganizers of three Taylor Swift concerts in Vienna this week called them off on Wednesday after officials announced arrests over an apparent plot to launch an attack on an event in the Vienna area such as the concerts as part of her Eras TourOrganizers of three Taylor Swift concerts in Vienna this week called them off on Wednesday after officials announced arrests over an apparent plot to launch an attack on an event in the Vienna area such as the concerts as part of her Eras Tour