When Lady Gaga tells you that the category of the night is "dance or die," there's only one thing to do: "Dance in the dark" until you drop. When Lady Gaga was announced as the Friday night ...

When Lady Gaga tells you that the category of the night is "dance or die," there's only one thing to do: "Dance in the dark" until you drop. When Lady Gaga was announced as the Friday night headliner ...