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Baltimore Ravens fans cheer in front of the Superdome before the NFL Super Bowl XLVII football game against the San Francisco 49ers in New Orleans, Louisiana, February 3, 2013. REUTERS/Sean Gardner

San Francisco 49ers fan Ramiro Munoz strikes a pose in front of the Superdome before the NFL Super Bowl XLVII football game against the Baltimore Ravens in New Orleans, Louisiana, February 3, 2013. REUTERS/Sean Gardner

San Francisco 49ers fans pose before the start of Super Bowl XLVII between the San Francisco 49ers and the Baltimore Ravens on February 3, 2013 at the Mercedes-Benz Superdome in New Orleans. TIMOTHY A. CLARY/AFP/Getty Images

Vikram Sandhu, of San Jose, Calif., wears face paint before the NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens, Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Marcio Sanchez)

(L-R) Shane Knight and Jimmy Bowers, fans of the San Francisco 49ers, show support for their team outside the stadium prior to Super Bowl XLVII against the Baltimore Ravens at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Win McNamee/Getty Images)

Philip Luelsdorf, fan of the Baltimore Ravens shows support for his team outside the stadium prior to Super Bowl XLVII against the San Francisco 49ers at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Win McNamee/Getty Images)

A Baltimore Ravens fan stands outside the Superdome before the NFL Super Bowl XLVII football game against the San Francisco 49ers in New Orleans, Louisiana, February 3, 2013. REUTERS/Sean Gardner

A San Francisco 49ers fan poses before the start of Super Bowl XLVII between the San Francisco 49ers and the Baltimore Ravens on February 3, 2013 at the Mercedes-Benz Superdome in New Orleans. TIMOTHY A. CLARY/AFP/Getty Images

Baltimore Ravens fan Cindy Piece poses for a photo before the NFL Super Bowl XLVII football game between the Ravens and the San Francisco 49ers Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Marcio Sanchez)

San Francisco 49ers fan Ramiro Munoz, of Fresno, Calif., poses for a photo before the NFL Super Bowl XLVII football game between the 49ers and the Baltimore Ravens, Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Charlie Riedel)

A fan of the Baltimore Ravens shows support for his team outside the stadium prior to Super Bowl XLVII against the San Francisco 49ers at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Win McNamee/Getty Images)

A Baltimore Ravens fan poses before the start of Super Bowl XLVII between the San Francisco 49ers and the Baltimore Ravens on February 3, 2013 at the Mercedes-Benz Superdome in New Orleans. TIMOTHY A. CLARY/AFP/Getty Images

A Baltimore Ravens fan prepares for their game against the San Francisco 49ers prior to Super Bowl XLVII at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Scott Halleran/Getty Images)

(L-R) Sue Weber, Tracy Heaberlin, Jan Levy and Danielle Gallagher, fans of the Baltimore Ravens, show support for their team outside the stadium prior to Super Bowl XLVII against the San Francisco 49ers at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Win McNamee/Getty Images)

Dancers perform outside the stadium prior to the San Francisco 49ers playing against the Baltimore Ravens during Super Bowl XLVII at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Win McNamee/Getty Images)

Jennifer Jones dances outsidethe Superdome before the NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens on Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Gene Puskar)

A San Francisco 49ers fan is seen before his team pays the Baltimore Ravens in the NFL Super Bowl XLVII football game in New Orleans, Louisiana, February 3, 2013. REUTERS/Jeff Haynes

In this photo made with a fisheye lens, fans line up to enter the Superdome before the NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens on Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Gene Puskar)

NEW ORLEANS, LA - FEBRUARY 03: San Francisco 49ers fans perform outside the stadium prior to Super Bowl XLVII against the Baltimore Ravens at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Al Bello/Getty Images)

A San Francisco 49ers fan poses outside the Mercedes-Benz Superdome in New Orleans before the start of Super Bowl XLVII between the San Francisco 49ers and the Baltimore Ravens on February 3, 2013. TIMOTHY A. CLARY/AFP/Getty Images

David and Evan Waksman, from New York, pose with skull helmets outside the Superdome before the NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Mark Humphrey)

Chris Newton, of Alexandria, Va., poses for a photo before the NFL Super Bowl XLVII football game between the Baltimore Ravens and the San Francisco 49ers, Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Patrick Semansky)

Musicians entertain the fans before the start of Super Bowl XLVII between the San Francisco 49ers and the Baltimore Ravens on February 3, 2013 at the Mercedes-Benz Superdome in New Orleans, Louisiana. TIMOTHY A. CLARY/AFP/Getty Images

A Baltimore Ravens fan poses before the start of Super Bowl XLVII between the San Francisco 49ers and the Baltimore Ravens on February 3, 2013 at the Mercedes-Benz Superdome in New Orleans. TIMOTHY A. CLARY/AFP/Getty Images

Members of the Niner Noise Drumline perform outside of the Superdome before the NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens on Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Elise Amendola)

A San Francisco 49ers fan poses for photos before the NFL Super Bowl XLVII football game between the 49ers and the Baltimore Ravens, Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Mark Humphrey)

Darryl Young performs outside the Superdome before the NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Evan Vucci)

Journey's Jonathon Cain, left, and Neil Schon, second from left, pose with Rascal Flats Joe Dan Rooney, center, Jay DeMarcus and Gary Levox, right, in New Orleans Friday Feb. 1, 2013. Journey and Rascal Flatts got on stage together for CMT's Crossroads concert Super Bowl weekend. (AP Photo/ John Carucci)

From left, San Francisco 49ers fans Vince Knoss, Ryan Knoss and Gibran Farrah, all of San Francisco, cheer before the NFL Super Bowl XLVII football game between the 49ers and the Baltimore Ravens, Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Mark Humphrey)

A large banner on the exterior of the Mercedes-Benz Superdome of Ray Lewis of the Baltimore Ravens is seen before the start of Super Bowl XLVII between the San Francisco 49ers and the Ravens on February 3, 2013 in New Orleans, Louisiana. (Photo by Rob Carr/Getty Images)

A vendor sells an official program outside the Superdome before the NFL Super Bowl XLVII football game between the San Francisco 49ers and the Baltimore Ravens Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Evan Vucci)