Super Bowl XLVII - Baltimore Ravens v San Francisco 49ers

By April 18, 2013 4:53 pm ET

NEW ORLEANS, LA – FEBRUARY 03: Alicia Keys performs the National Anthem during Super Bowl XLVII between the Baltimore Ravens and the San Francisco 49ers at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Chris Graythen/Getty Images)