The lights go down, the stage is empty. People are still moving, talking, as they wait for the show to begin. But as the sound system powers up, blaring with a mix of heavy guitar and drums.

Then, Hayley Williams walks onto stage, looking very different from her normal, cheerful, punk rocker self.

Her hair is disheveled, her face gaunt, and her eyes are dark and wild. She looks like a completely different person - a shell of who she used to be.