[lastfm link_type="artist_info"]Christina Aguilera[/lastfm] will sing the national anthem at that big bowl game going on in Texas on Feb. 6.
The five-time Grammy award-winning singer will be making an encore at the championship. She was part of the half time show during the 2000 game.
Past stars to have sung the national anthem at the Big Game include Carrie Underwood, Billy Joel, Diana Ross, Neil Diamond, Mariah Carey and Beyoncé Knowles.
This years halftime show will feature The Black Eyed Peas.
Pittsburgh will play Green Bay at Cowboys Stadium in Arlington, Texas, for the NFL title.