It’s 1984. The arena is packed. The house lights are on, and the crowd is rumbling like a New York City subway. All of a sudden, the lights go down and a sound akin to an earthquake of sirens erupts. And it’s not the music, it’s the crowd noise. At precisely this exact moment, the crowd is blinded by a visual spectacle of light that fills the huge space with bright colored movement sweeping across the cavern until it funnels down like sunlight through a magnifying glass on a leaf to a spot of light on the stage: it’s a man. It’s ... Prince.