Niantic is hosting their first Pokémon GO Fest event in Chicago this weekend and will be live streaming the event for those who couldn’t attend the event.
During the Pokémon GO Fest event, trainers will have to work together in catching and fighting Pokémon in order to summon a Legendary Pokémon.
If the trainers in the Pokémon GO Fest event succeed in defeating the Legendary Pokémon, that specific Legendary will make its way to Raid Battles around the world after Pokémon GO Fest. You can watch the stream on their Twitch & YouTube channel.