ShowShowWitness: The Tour: Saint PaulDec 1, 2017Katy Perry, Purity RingGrand Casino Arena · Saint Paul, United StatesFollowI was thereUpload from this showMediaLineupAboutDateDec 1, 2017VenueGrand Casino Arena · Saint Paul, United StatesArtistsKaty Perry, Purity RingListingConfirmedShow details from MusicBrainz.