Adam MarcelloActingNo biography available.Known ForFan ClubNo Nerds have favorited Adam Marcello yet — be the first.All fan clubsFrom NerdspinFilmographyActor42015Katy Perry: The Prismatic World Tour LiveFilmSelf★ 8.32014Late Night with Seth MeyersTVSelf • 1 episodes★ 5.12012Katy Perry: Part of MeFilmSelf★ 7.12009Katy Perry: MTV UnpluggedFilmSelf★ 8.6