Alicia Keys and American Idol winner Jordin Sparks have been added to the Super Bowl celebrations in Arizona on Sunday (03Feb08). Keys will perform before the big game, while local girl Sparks, will sing The Star-Spangled Banner at the beginning of the clash between the team her father once played for, the New York Giants, and favourites the New England Patriots. Rockers Tom Petty + The Heartbreakers will headline the halftime spectacular.