If you've watched any Sunday Night Football on NBC, you're familiar with the opening theme, "Waiting All Day for Sunday Night."

Carrie will be performing the opening for NBC's coverage of Super Bowl 49 on Sunday. "Waiting All Day for a Super Bowl Fight," is a new version with lyrics referring to the New England Patriots and defending Super Bowl Champions Seattle Seahawks.

Underwood has been featured in the opening for two years now, and is proud to be a part of the production.

"They really put a lot of love into it, so I definitely try to do the same -- everything from wardrobe and hair and make-up to tryin’ to work my way around the stage and interact with the audience, and I just love the way it turns out."

It's a perfect marriage, two of Carrie's favorite things coming together, music and football.

"It was, I guess, only a matter of time before I got to do everything, all that, all at once," Carrie says. "So, I definitely hope that’s something that I get to do for many years, 'cause it’s just so much fun."

NBC's Super Bowl coverage kicks off at noon ET this Sunday.