ShowShowWitness: The Tour: Des MoinesDec 2, 2017Katy Perry, Purity RingCasey’s Center · Des Moines, United StatesFollowI was thereUpload from this showMediaLineupAboutDateDec 2, 2017VenueCasey’s Center · Des Moines, United StatesArtistsKaty Perry, Purity RingListingConfirmedShow details from MusicBrainz.