ShowShowWitness: The Tour: PittsburghSep 22, 2017Katy Perry, Noah CyrusPPG Paints Arena · Pittsburgh, United StatesFollowI was thereUpload from this showMediaLineupAboutDateSep 22, 2017VenuePPG Paints Arena · Pittsburgh, United StatesArtistsKaty Perry, Noah CyrusListingConfirmedShow details from MusicBrainz.