Dec 19, 2011; San Francisco, CA, USA; San Francisco 49ers gold rush cheerleaders perform in Christmas costumes during the game against the Pittsburgh Steelers at Candlestick Park. Mandatory Credit: Kirby Lee/Image of Sport-US PRESSWIRE

Dec 19, 2011; San Francisco, CA, USA; San Francisco 49ers gold rush cheerleaders perform during the game against the Pittsburgh Steelers at Candlestick Park. Mandatory Credit: Kirby Lee/Image of Sport-US PRESSWIRE

Dec 19, 2011; San Francisco, CA, USA; San Francisco 49ers gold rush cheerleaders perform during the game against the Pittsburgh Steelers at Candlestick Park. Mandatory Credit: Kirby Lee/Image of Sport-US PRESSWIRE

A St. Louis Rams cheerleader performs during the first quarter of an NFL football game between the St. Louis Rams and the Cincinnati Bengals Sunday, Dec. 18, 2011, in St. Louis. (AP Photo/Jeff Roberson)

Cheerleaders are seen during the first half of an NFL football game between the Minnesota Vikings and the New Orleans Saints Sunday, Dec. 18, 2011, in Minneapolis. (AP Photo/Charlie Neibergall)

Cheerleaders perform during the first half of an NFL football game between the Minnesota Vikings and the New Orleans Saints Sunday, Dec. 18, 2011, in Minneapolis. (AP Photo/Charlie Neibergall)

Buffalo Bills cheerleaders perform against the Miami Dolphins during the first half of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 18, 2011. (AP Photo/Gary Wiepert)

A cheerleader performs during the second half of an NFL football game between the Minnesota Vikings and the New Orleans Saints Sunday, Dec. 18, 2011, in Minneapolis. (AP Photo/Charlie Neibergall)

St. Louis Rams cheerleaders perform during the second quarter of an NFL football game between the St. Louis Rams and the Cincinnati Bengals Sunday, Dec. 18, 2011, in St. Louis. (AP Photo/Tom Gannam)

A Tampa Bay Buccaneers cheerleader performs during the first half of an NFL football game against the Dallas Cowboys Saturday, Dec. 17, 2011, in Tampa, Fla. (AP Photo/Chris O'Meara)

Tampa Bay Buccaneers cheerleaders line up in the tunnel, wearing holiday outfits, before taking to the field before the start of an NFL football game between the Buccaneers and the Dallas Cowboys Saturday, Dec. 17, 2011, in Tampa, Fla. (AP Photo/Brian Blanco)

A Tampa Bay Buccaneers cheerleader during the second half of an NFL football game against the Dallas Cowboys Saturday, Dec. 17, 2011, in Tampa, Fla. (AP Photo/Chris O'Meara)

A Tampa Bay Buccaneers cheerleader during the second half of an NFL football game against the Dallas Cowboys Saturday, Dec. 17, 2011, in Tampa, Fla. (AP Photo/Chris O'Meara)

Tampa Bay Buccaneers cheerleaders perform during the first half of an NFL football game against the Dallas Cowboys, Saturday, Dec. 17, 2011, in Tampa, Fla. (AP Photo/John Raoux)

Tampa Bay Buccaneers cheerleaders perform during the first half of an NFL football game against the Dallas Cowboys, Saturday, Dec. 17, 2011, in Tampa, Fla. (AP Photo/John Raoux)

Atlanta Falcons cheerleaders perform before the first half of an NFL football game against the Jacksonville Jaguars, Thursday, Dec. 15, 2011, in Atlanta. (AP Photo/John Bazemore)

Atlanta Falcons cheerleaders perform before the first half of an NFL football game against the Jacksonville Jaguars, Thursday, Dec. 15, 2011, in Atlanta. (AP Photo/David Goldman)

Dec 17, 2011; Tampa, FL, USA; A Tampa Bay Buccaneers cheerleader performs before the fourth quarter at Raymond James Stadium. Mandatory Credit: Douglas Jones-US PRESSWIRE

Atlanta Falcons cheerleaders perform before the first half of an NFL football game against the Jacksonville Jaguars, Thursday, Dec. 15, 2011, in Atlanta. (AP Photo/David Goldman)

Atlanta Falcons cheerleaders perform before the first half of an NFL football game against the Jacksonville Jaguars, Thursday, Dec. 15, 2011, in Atlanta. (AP Photo/David Goldman)

Atlanta Falcons cheerleaders perform before the first half of an NFL football game against the Jacksonville Jaguars, Thursday, Dec. 15, 2011, in Atlanta. (AP Photo/John Bazemore)

Dec 18, 2011; Houston, TX, USA; Houston Texans cheerleader performs against the Carolina Panthers in the first quarter at Reliant Stadium. Mandatory Credit: Brett Davis-US PRESSWIRE

December 18, 2011; Houston, TX, USA; Houston Texans cheerleaders perform during a game against the Carolina Panthers at Reliant Stadium. Mandatory Credit: Troy Taormina-US PRESSWIRE

Dec 18, 2011; Philadelphia, PA, USA; A Philadelphia Eagles cheerleader performs during the third quarter against the New York Jets at Lincoln Financial Field. The Eagles defeated the Jets 45-19. Mandatory Credit: Howard Smith-US PRESSWIRE

Dec 18, 2011; Oakland, CA, USA; Oakland Raiderettes cheerleaders perform in Christmas costumes during the game against the Detroit Lions at the O.co Coliseum. Mandatory Credit: Kirby Lee/Image of Sport-US PRESSWIRE

Dec 18 2011; Denver, CO, USA; Denver Broncos cheerleaders perform during the third quarter against the New England Patriots at Sports Authority Field. Mandatory Credit: Ron Chenoy-US PRESSWIRE

Dec 18, 2011; Indianapolis, IN, USA; Indianapolis Colts cheerleader performs a routine during a game against the Tennessee Titans at Lucas Oil Stadium. Indianapolis defeated Tennessee 27-13. Mandatory Credit: Brian Spurlock-US PRESSWIRE