Forget that you forgot the words, can ya just sing the song? (Video)

I don't get it, the girl really can sing. She's got a powerful set of lungs on her. She started off ok, but it's like she tried to make up for screwing up the lines by oversinging…

I would still wear her ass like a surgeon's mask. Om nom nom nom!!!

I like the look on the Marines' faces. They look pissed. And even right after the line gets messed up, you can see a Steelers player look over to the side like "Wait, what just..?"