ShowShowWitness: The Tour: MilwaukeeDec 4, 2017Katy Perry, Purity RingBMO Harris Bradley Center · Milwaukee, United StatesFollowI was thereUpload from this showMediaLineupAboutDateDec 4, 2017VenueBMO Harris Bradley Center · Milwaukee, United StatesArtistsKaty Perry, Purity RingListingConfirmedShow details from MusicBrainz.