The new version is called "Waiting All Day for a Super Bowl Fight." She obviously changed the words to fit the big game and it's players.
This season wraps up Carrie's second year singing the theme song for NBC's football games on Sunday. She took over the job when Faith Hill stepped aside.
It's unclear if Carrie will be actually performing at the Super Bowl in Arizona. We're sure the very-pregnant 'Little Toy Guns' singer will be watching if not!
Listen to Carrie's updated NFL theme song below.
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Gallery | Carrie Underwood Hits the Stage