The Dallas Cowboys Cheerleaders perform during Dallas Cowboys-Philadelphia Eagles game at Cowboys Stadium in Arlington, Texas on December 24, 2011. UPI/Ian Halperin | License Photo

The Dallas Cowboys Cheerleaders perform during Dallas Cowboys-Philadelphia Eagles game at Cowboys Stadium in Arlington, Texas on December 24, 2011. UPI/Ian Halperin | License Photo

The Dallas Cowboys Cheerleaders perform during Dallas Cowboys-Philadelphia Eagles game at Cowboys Stadium in Arlington, Texas on December 24, 2011. UPI/Ian Halperin | License Photo

Arizona Cardinals cheerleaders watch the Cardinals-St. Louis Rams game at University of Phoenix Stadium in Glendale, Arizona on November 6,2011. The Cardinals defeated the Rams 19-13 on a 99 yard punt return touchdown by Patrick Peterson in overtime. UPI/Art Foxall | License Photo

Arizona Cardinals cheerleaders perform a routine in the second quarter of the Cardinals-Dallas Cowboys game at University of Phoenix Stadium in Glendale, Arizona on December 4,2011. UPI Photo/Art Foxall | License Photo

The Denver Broncos cheerleaders perform at Sports Authority Field at Mile High on December 11, 2011 in Denver. UPI/Gary C. Caskey | License Photo

Arizona Cardinals cheerleader strikes a pose during a routine at the two minute warning of the Cardinals-Cleveland Browns game at University of Phoenix Stadium in Glendale, Arizona, December 18,2011. The Cardinals defeated the Browns 20-17 in overtime. UPI /Art Foxall | License Photo

The Dallas Cowboys Cheerleaders perform during Dallas Cowboys-Philadelphia Eagles game at Cowboys Stadium in Arlington, Texas on December 24, 2011. UPI/Ian Halperin | License Photo

Dallas Cowboys Cheerleaders perform during the Cowboys and New York Giants game at Cowboys Stadium in Arlington, Texas on December 11, 2011. UPI/Ian Halperin | License Photo

A Washington Redskins' cheerleader performs during their game against the Arizona Cardinals at FedEx Field in Washington on September 18, 2011. The Redskins defeated the Cardinals 22-21. UPI/Kevin Dietsch | License Photo

Dallas Cowboys cheerleaders perform during the Cowboys game against the St. Louis Rams at Cowboys Stadium in Arlington, Texas on October 23, 2011. UPI/Kevin Dietsch | License Photo

Arizona Cardinals cheerleader does a kick during the Cardinals-San Francisco 49ers game at University of Phoenix Stadium in Glendale, Arizona on December 11,2011. The Cardinals defeated the 49ers 21-19. UPI /Art Foxall | License Photo

Dallas Cowboys Cheerleaders perform during the Cowboys-Washington Redskins game at Cowboys Stadium in Arlington, Texas on September 26, 2011. The Cowboys won 18-16. UPI/Ian Halpeirn | License Photo

Denver Broncos quarterback Tim Tebow runs past Santa Claus costumed cheerleaders at Sports Authority Field at Mile High on December 18, 2011 in Denver. The Patriots would clinch their AFC East division title with a win over the streaking Broncos. UPI/Gary C. Caskey | License Photo

The Denver Broncos cheerleaders perform at Sports Authority Field at Mile High in Denver on August 20, 2011. UPI/Gary C. Caskey | License Photo

Tampa Bay cheerleaders perform in the NFL Invitational series against Chicago Bears at Wembley Stadium,London on Sunday October 23 2011. It is the fifth time London has hosted a regular NFL league game in the UK. UPI/Hugo Philpott | License Photo

A Dallas Cowboys Cheerleader performs during the Dallas and New York Giants game at Cowboys Stadium in Arlington, Texas on December 11, 2011. UPI/Ian Halperin | License Photo

Arizona Cardinals cheerleader dances during the Cardinals-San Francisco 49ers game at University of Phoenix Stadium in Glendale, Arizona on December 11,2011. The Cardinals defeated the 49ers 21-19. UPI /Art Foxall | License Photo

The Denver Broncos cheerleaders perform at Sports Authority Field at Mile High on December 11, 2011 in Denver. UPI/Gary C. Caskey | License Photo

Arizona Cardinals cheerleader dances during the two minute warning of the Cardinals-Cleveland Browns game at University of Phoenix Stadium in Glendale, Arizona, December 18,2011. The Cardinals defeated the Browns 20-17 in overtime. UPI /Art Foxall | License Photo

Miami Dolphins Cheerleaders entertain the crowd during first half action, between the Miami Dolphins, and the Philadelphia Eagles December 11, 2011 at Sun Life Stadium in Miami, Florida.The Philadelphia Eagles beat the Miami Dolphins 26-10. . UPI Photo/Susan Knowles. | License Photo

Miami Dolphins Cheerleaders entertain the crowd during first half action, between the Miami Dolphins, and the Philadelphia Eagles December 11, 2011 at Sun Life Stadium in Miami, Florida.The Philadelphia Eagles beat the Miami Dolphins 26-10. . UPI Photo/Susan Knowles. | License Photo

Miami Dolphins Cheerleaders entertain the crowd during first half action, between the Miami Dolphins, and the Philadelphia Eagles December 11, 2011 at Sun Life Stadium in Miami, Florida.The Philadelphia Eagles beat the Miami Dolphins 26-10. . UPI Photo/Susan Knowles. | License Photo

Washington Redskins' cheerleaders perform as the Redskins play the New York Jets at FedEx Field in Landover, Maryland on December 4, 2011. UPI/Kevin Dietsch | License Photo

A Washington Redskins cheerleader performs as the Redskins play the Dallas Cowboys at FedEx Field in Washington on November 20, 2011. UPI/Kevin Dietsch | License Photo

The Jets Flight Crew Cheerleaders perform on the field between plays as the Buffalo Bills play the New York Jets in week 12 of the NFL season at MetLife Stadium in East Rutherford, New Jersey on November 27, 2011. UPI /John Angelillo | License Photo

A Washington Redskins cheerleader performs as the Redskins play the San Francisco 49ers at FedEx Field in Landover, Maryland on November 6, 2011. UPI/Kevin Dietsch | License Photo

A Washington Redskins cheerleader performs as the Redskins play the Dallas Cowboys at FedEx Field in Washington on November 20, 2011. UPI/Kevin Dietsch | License Photo

The Jets Flight Crew Cheerleaders perform on the field between plays as the Buffalo Bills play the New York Jets in week 12 of the NFL season at MetLife Stadium in East Rutherford, New Jersey on November 27, 2011. UPI /John Angelillo | License Photo

Arizona Cardinals cheerleaders dance during the Cardinals-Pittsburgh Steelers game at University of Phoenix Stadium in Glendale, Arizona on October 23,2011. The Steelers defeated the Cardinals 32-20. UPI/Art Foxall | License Photo

An Arizona Cardinals cheerleader does a routine during the Cardinals-St. Louis Rams game at University of Phoenix Stadium in Glendale, Arizona on November 6,2011. The Cardinals defeated the Rams 19-13 with a 99 yard punt return touchdown by Patrick Peterson in overtime. UPI/Art Foxall | License Photo

Dallas Cowboys cheerleaders perform during the Cowboys game against the St. Louis Rams at Cowboys Stadium in Arlington, Texas on October 23, 2011. UPI/Kevin Dietsch | License Photo

An Arizona Cardinals cheerleader strikes a pose during the Cardinals-St. Louis Rams game at University of Phoenix Stadium in Glendale, Arizona on November 6,2011. The Cardinals defeated the Rams 19-13 with a 99 yard punt return touchdown by Patrick Peterson in overtime. UPI/Art Foxall | License Photo

A Dallas Cowboy cheerleader performs during the Cowboys game against the St. Louis Rams at Cowboys Stadium in Arlington, Texas on October 23, 2011. UPI/Kevin Dietsch | License Photo

A Baltimore Ravens cheerleader performs as the Ravens play the Indianapolis Colts in Baltimore, Maryland on December 11, 2011. UPI/Kevin Dietsch | License Photo

An Arizona Cardinals cheerleader holds her hat during a routine during the Cardinals-St. Louis Rams game at University of Phoenix Stadium in Glendale, Arizona on November 6,2011. The Cardinals defeated the Rams 19-13 with a 99 yard punt return touchdown by Patrick Peterson in overtime. UPI/Art Foxall | License Photo

The Denver Broncos cheerleaders performat Sports Authority Field at Mile High in Denver on November 17, 2011. Denver came from behind to defeat New York 17-14 on a 20-yard touchdown run by quarterback Tim Tebow UPI/Gary C. Caskey | License Photo

A Dallas Cowboys Cheerleader autographs copies of the 2012 Swimsuit Calendar during an unveiling party in Grapevine, Texas on November 18, 2011. The cheerleaders produced four calendars for 2012. UPI/Ian Halperin | License Photo

Arizona Cardinals cheerleader dances during the Cardinals-Pittsburgh Steelers game at University of Phoenix Stadium in Glendale, Arizona on October 23,2011. The Steelers defeated the Cardinals 32-20. UPI/Art Foxall | License Photo

A Houston Texans cheerleader salutes the crowd following a performance against the Cleveland Browns at Reliant Stadium in Houston, Texas on November 6, 2011. The Texans defeated the Browns 30-12. UPI/Aaron M. Sprecher | License Photo

Arizona Cardinals cheerleader dances during the Cardinals-Pittsburgh Steelers game at University of Phoenix Stadium in Glendale, Arizona on October 23,2011. The Steelers defeated the Cardinals 32-20. UPI/Art Foxall | License Photo

Dallas Cowboys Cheerleader Sydney Durso autographs copies of the 2012 Swimsuit Calendar during an unveiling party in Grapevine, Texas on November 18, 2011. The cheerleaders produced four calendars for 2012. UPI/Ian Halperin | License Photo

Miami Dolphins cheerleaders entertain the crowd during second half action, between the Miami Dolphins, and the Denver Broncos October 23, 2011 at Sun Life Stadium in Miami, Florida. The Denver Broncos beat the Miami Dolphins in overtime 18-15. .. UPI Photo/Susan Knowles | License Photo

A Dallas Cowboys Cheerleader performs during the Cowboys Rams game at Cowboys Stadium in Arlington, Texas on October 23, 2011. UPI/Ian Halpeirn | License Photo

Miami Dolphin Cheerleaders entertain during 2nd half action, between the Miami Dolphins, and the Houston Texans September 18, 2011 at Sun Life Stadium in Miami, Florida.The Houston Texans beat the Miami Dolphins 23-13. UPI/Susan Knowles | License Photo

The Denver Broncos cheerleaders perform at Sports Authority Field at Mile High on October 9, 2011 in Denver. UPI/Gary C. Caskey | License Photo

The Denver Broncos cheerleaders perform at Sports Authority Field at Mile High on October 9, 2011 in Denver. UPI/Gary C. Caskey | License Photo

Arizona Cardinals cheerleaders dance during the Cardinals-Pittsburgh Steelers game at University of Phoenix Stadium in Glendale, Arizona on October 23,2011. The Steelers defeated the Cardinals 32-20. UPI/Art Foxall | License Photo

Miami Dolphins cheerleaders entertain the crowd during second half action, between the Miami Dolphins, and the Denver Broncos October 23, 2011 at Sun Life Stadium in Miami, Florida. The Denver Broncos beat the Miami Dolphins in overtime 18-15. .. UPI Photo/Susan Knowles | License Photo

A Dallas Cowboy cheerleader performs during the Cowboys game against the St. Louis Rams at Cowboys Stadium in Arlington, Texas on October 23, 2011. UPI/Kevin Dietsch | License Photo

A Washington Redskins' cheerleader performs as the Redskins play the Philadelphia Eagles at FedEx Field in Landover, Maryland on October 16, 2011. The Eagles defeated the Redskins 20-13. UPI/Kevin Dietsch | License Photo

Dallas Cowboys Cheerleaders perform during the Cowboys-Washington Redskins game at Cowboys Stadium in Arlington, Texas on September 26, 2011. The Cowboys won 18-16. UPI/Ian Halpeirn | License Photo

The Denver Broncos cheerleaders perform during the fourth quarter at Sports Authority Field at Mile High on September 18, 2011 in Denver. The Broncos held off the Bengals winning 24-22. UPI/Gary C. Caskey | License Photo

A New England Patriots cheerleader dances with her squad during a break in the game against the New York Jets in the first quarter at Gillette Stadium in Foxboro, Massachusetts on October 9, 2011. UPI/Matthew Healey | License Photo

The New York Jets Flight Crew Cheerleaders take the field during a time out as the Jacksonville Jaguars play New York Jets in week 2 of the NFL season at MetLife Stadium in East Rutherford, New Jersey on September 18, 2011. The Jets defeated the Jaguars 32-3. UPI /John Angelillo | License Photo

The Denver Broncos cheerleaders perform a line dance during the first quarter at Sports Authority Field at Mile High on September 18, 2011 in Denver. The Broncos try to avoid their first 0-2 start in 12 years. UPI/Gary C. Caskey | License Photo

The Denver Broncos cheerleaders perform at Sports Authority Field at Mile High in Denver on August 20, 2011. UPI/Gary C. Caskey | License Photo

Washington Redskins cheerleaders perform in between the first and second quarter their pre-season game against the Pittsburgh Steelers at FedEx Field in Landover, Maryland on August 12, 2011. UPI/Roger L. Wollenberg | License Photo

The San Francisco 49ers Goldrush entertain before a game against the Huston Texans at Candlestick Park in San Francisco on August 27, 2011. The Texans trounced the 49ers 30-7. UPI/Terry Schmitt | License Photo

The Oakland Raiderettes entertain before a game against the New Orleans Saints at the Coliseum in Oakland, California on August 28, 2011. UPI/Terry Schmitt | License Photo

A St. Louis Rams cheerleader entertains the crowd during a time out in the Tennessee Titans-St. Louis Rams football game at the Edward Jones Dome in St. Louis on August 20, 2011. UPI/Bill Greenblatt | License Photo

Washington Redskins cheerleaders perform in between the first and second quarter their pre-season game against the Pittsburgh Steelers at FedEx Field in Landover, Maryland on August 12, 2011. UPI/Roger L. Wollenberg | License Photo

Dallas Cowboys Cheerleaders perform prior to the Cowboys-Detroit Lions NFL game November 21, 2010 in Arlington, Texas. UPI/Ian Halperin | License Photo

The San Francisco 49ers Goldrush entertain before a game against the Huston Texans at Candlestick Park in San Francisco on August 27, 2011. The Texans trounced the 49ers 30-7. UPI/Terry Schmitt | License Photo

A Denver Broncos cheerleader performs at Sports Authority Field at Mile High in Denver on August 20, 2011. UPI/Gary C. Caskey | License Photo

Young pee-wee football players have little interest for the St. Louis Rams cheerleader standing in front of them as they wait to play during halftime of the San Francisco 49ers - St. Louis Rams football game at the Edward Jones Dome in St. Louis on January 3, 2010. UPI/Bill Greenblatt | License Photo

New England Patriots cheerleaders dance in the end zone while dressed in Halloween costumes in the second quarter of the game between the Minnesot Vikings and New England Patriots at Gillette Stadium in Foxboro, Massachusetts on October 31, 2010. The Patriots defeated the Vikings 28-18. UPI/Matthew Healey | License Photo

A Denver Broncos cheerleader performs at Sports Authority Field at Mile High in Denver on August 20, 2011. UPI/Gary C. Caskey | License Photo

The Denver Broncos cheerleaders perform in their Christmas Holiday uniforms at the end of the first quarter at Invesco Field at Mile High in Denver on December 20, 2009. UPI/Gary C. Caskey... | License Photo

St. Louis Rams cheerleaders entertain the crowd during the fourth quarter during a game against the Minnesota Vikings at the Edward Jones Dome in St. Louis on October 11, 2009. Minnesota won the game 31-10. UPI/Bill Greenblatt | License Photo

The Oakland Raiderettes entertain before a game against the New Orleans Saints at the Coliseum in Oakland, California on August 28, 2011. UPI/Terry Schmitt | License Photo

A Washington Redskins' cheerleader performs as the Redskins play the Houston Texans at FedEx Field in Washington on September 19, 2010. The Texans defeated the Redskins 30-27. UPI/Kevin Dietsch | License Photo

Denver Broncos cheerleaders perform at Invesco Field at Mile High on October 17, 2010 in Denver. The AFC East division leader Jets beat the Broncos 24-20. UPI/Gary C. Caskey | License Photo

A Miami Dolphins cheerleader performs, as the Dolphins play the Pittsburgh Steeler sat Sun Life Stadium in Miami on October 24, 2010. The Steelers win the game 23-22. UPI/Michael Bush | License Photo

The Denver Broncos cheerleaders perform at Sports Authority Field at Mile High in Denver on August 20, 2011. UPI/Gary C. Caskey | License Photo

Dallas Cowboys' cheerleaders perform as the Cowboys play the Jacksonville Jaguars in Arlington, Texas October 31, 2010. UPI/Kevin Dietsch | License Photo

Washington Redskins' cheerleaders performs as the Redskins play the Indianapolis Colts at FedEx Field in Landover, Maryland on October 17, 2010. UPI/Kevin Dietsch | License Photo

Washington Redskins cheerleaders perform in between the first and second quarter their pre-season game against the Pittsburgh Steelers at FedEx Field in Landover, Maryland on August 12, 2011. UPI/Roger L. Wollenberg | License Photo