First, tell me what happens, and I can answer the question.
First you hear a choir like singing ahhh ahhh ahhh then the singer climbs up the stairs to the roof, she's wearing these black knee boots that have a similar mark to Windsor smith on them. She reaches the roof and there's a chair in the middle and about I think 5 or 6 dancers dressed in black, they each come forward and dances as she beckons them with her hand. Each dancer has a different style of dancing, in the end they all dance their own style around her and then they fall to the ground.
I know it's not much to go on! Sorry!