Hey, Chiefs fans! We need your help to #lightuparrowhead at the Chiefs vs. Packers, Sunday Night Football game! Directly before player introductions, we will have a fan-driven, smart-phone light show. All you need to participate is your smartphone and the Chiefs Mobile App.

In advance of the game, you will need to grant the app permission to use your microphone, as the light show is triggered by in-stadium audio. Watch the video below for step-by-step instructions.

During pregame, when the cheerleaders are dancing, fans will be directed to take out their phones and go to the chiefs mobile app. Once in the app, there will be a card on the home page to "join the light show". We'll take care of the rest.