Alicia Keys is adding her voice to the Super Bowl show. The Grammy-winning R&B singer has been lined up to perform the national anthem before the NFL championship game on Feb. 3 in New Orleans, a person familiar with Super Bowl entertainment plans told The Associated Press on Friday. The person spoke on condition of anonymity because the NFL has not yet announced the anthem singer. Keys, who turns 32 next week, released her fifth studio album, “Girl on Fire,” late last year. The Super Bowl teams will be determined this Sunday, when the San Francisco 49ers play the Atlanta Falcons in the NFC championship game, and the Baltimore Ravens face the New England Patriots in the AFC championship game.