They don't just pick someone the day before the game. I'm sure she rehearsed alot, practiced. I'm sure it was just a simple mistake.
Kinda like when you're saying something and you want to say something, but RIGHT before you say it you think of a different word to say and end up saying both of them together. :/
She could've just simply let her mind wonder for a second or something.
wat do u think of Christina Aguilera messin up the lyrics to the national anthem at SuperBowl 45
Every body makes mistakes and the only reason this is such a big deal is because it was at the super bowl did you see how they picked on A-Rod (not a fan) for his wife feeding him a piece of popcorn so no its no big deal