Super Bowl XLV

Vendors sell cheese head hats to Green Bay Packers fans before they play against the Pittsburgh Steelers in Super Bowl XLV at Cowboys Stadium on Feb. 6, 2011 in Arlington, Texas.

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Daniel Fiuza, left, and Brett Klien, right, both of Toronto, pose for photographs before Super Bowl XLV.

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Credit: AP Photo/LM Otero

The Pittsburgh Steelers run onto the field prior to Super Bowl XLV at Cowboys Stadium.

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Aaron Rodgers (12) of the Green Bay Packers leads his team onto the field prior to Super Bowl XLV.

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Christina Aguilera sings the national anthem before Super Bowl XLV.

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NFL Hall of Famer Deion Sanders (C) flips the coin as James Farrior (51) of the Pittsburgh Steelers and Charles Woodson (21) and Aaron Rodgers (12) of the Green Bay Packers look on.

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Jordy Nelson (87) of the Green Bay Packers attempts to catch a pass against Bryant McFadden (20) of the Pittsburgh Steelers.

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Jordy Nelson (87) of the Green Bay Packers catches a 29 yard touchdown pass over William Gay (22) of the Pittsburgh Steelers during the first quarter. Packers lead 7-0.

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Green Bay Packers' Clay Matthews (52) tackles Pittsburgh Steelers' Ben Roethlisberger during the first quarter.

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Nick Collins of the Green Bay Packers scores a touchdown against the Pittsburgh Steelers after intercepting Steelers QB Ben Roethlisberger. The Packers led 14-0 at the end of the first quarter.

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Pittsburgh Steelers' Shaun Suisham kicks a field goal as Jeremy Kapinos holds the ball during the second quarter.

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Pittsburgh Steelers' Troy Polamalu (43) delivers a blow to Green Bay Packers' Greg Jennings, right, as Jennings grabs a reception for a touchdown during the second quarter. The Packers were up 21-3.

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Antwaan Randle El (82) of the Pittsburgh Steelers goes up for a catch against the Green Bay Packers in the second quarter.

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Hines Ward (86) of the Pittsburgh Steelers catches an eight yard touchdown pass in the second quarter as Jarrett Bush (24) of the Green Bay Packers defends. The Steelers cut the Packers lead to 21-10 going into the half.

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From left to right, Taboo, Fergie, will.i.am and apl.de.ap of the Black Eyed Peas perform during the Bridgestone Super Bowl XLV Halftime Show at Cowboys Stadium.

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Pittsburgh Steelers' Rashard Mendenhall runs away from Green Bay Packers' Clay Matthews during the third quarter.

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Pittsburgh Steelers' Rashard Mendenhall celebrates after scoring a touchdown during the third quarter. The Steelers cut the lead to 21-17.

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Brett Swain (16) of the Green Bay Packers has a play broken up by William Gay (22) and Lawrence Timmons (94) of the Pittsburgh Steelers during the third quarter. The play was reviewed and the ruling on the field standed. The Packers led to 21-17.

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Green Bay Packers' Charlie Peprah (26) looks on as Green Bay Packers' Desmond Bishop (55) comes up with a fumble recovery during the fourth quarter of the NFL Super Bowl XLV football game Sunday, Feb. 6, 2011, in Arlington, Texas. The Pittsburgh Steelers' Doug Legursky is caught in the middle.

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Greg Jennings (85) of the Green Bay Packers catches a a fourth quarter touchdown pass as Troy Polamalu (43) of the Pittsburgh Steelers looks on. The Packers extended their led to 28-17.

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Credit: Getty Images/Doug Pensinger

Mike Wallace (17) of the Pittsburgh Steelers runs for 25 yard touchdown after catching a pass against Sam Shields (37) of the Green Bay Packers during the fourth quarter. The Packers lead was reduced to 28-23.

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Ben Roethlisberger (7) of the Pittsburgh Steelers celebrates after they scored a two point conversion against the Green Bay Packers in the fourth quarter. The Packers now led 28-25.

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Green Bay Packers' Mason Crosby (2), left, kicks a field goal as Tim Masthay (8) holds on the play in the fourth quarter. The Packers now led 31-25 just before the two minute warning.

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Credit: AP Photo/Charlie Riedel

Green Bay Packers' Clay Matthews (52) Josh Sitton (71) react after an incomplete pass by Pittsburgh Steelers' Ben Roethlisberger late in the fourth quarter of the NFL Super Bowl XLV football game Sunday, Feb. 6, 2011, in Arlington, Texas.

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Pittsburgh Steelers' Ben Roethlisberger walks off the field at the end of the NFL Super Bowl XLV football game against the Green Bay Packers Sunday, Feb. 6, 2011, in Arlington, Texas. The Packers won 31-25.

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Credit: AP Photo/Lynne Sladky

Green Bay Packers' Aaron Rodgers (12) reacts after winning Super Bowl XLV against the Pittsburgh Steelers, Feb. 6, 2011, in Arlington, Texas. Green Bay won 31-25.

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Credit: AP Photo/Kathy Willens

T.J. Lang (70) of the Green Bay Packers pours Gatorade on head coach Mike McCarthy after winning Super Bowl XLV at Cowboys Stadium on February 6, 2011 in Arlington, Texas.

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Aaron Rodgers (12) of the Green Bay Packers speaks to the press after winning Super Bowl XLV at Cowboys Stadium on February 6, 2011, in Arlington, Texas.

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Green Bay Packers head coach Mike McCarthy holds the Vince Lombardi Trophy after the Super Bowl XLV against the Pittsburgh Steelers Sunday, Feb. 6, 2011, in Arlington, Texas. The Packers won the game 31-25.

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Credit: AP Photo/Mark Humphrey