Uhh ... I have it on my DVR, and rewound it to make sure, and there were a few times what was coming out of the speakers wasn't what was going in the mike. It probably was recorded recently to match their currently scratchy vocal quality ... makes sense, thats a big show to screw up so they didn't want to take chances. If you have it recorded, check it out.
This is hotly debated all over the internet right now so we're not going to solve it here.