Pokémon is celebrating its 25th anniversary with Katy Perry The VergeKaty Perry Teams With Pokémon For Some Sort Of 25th Anniversary Music Thing KotakuPokémon Teams Up With Katy Perry To Kick Off 25th Anniversary Celebrations Nintendo LifeThe Pokémon Company announces new merch collaborations for 25th anniversary Nintendo WirePokemon recruits Katy Perry to celebrate 25th anniversary, drops cute trailer CNETView Full Coverage on Google News