2013: NFL cheerleaders (42 images)

The Denver Broncos cheerleaders perform at Sports Authority Field at Mile High in Denver on September 29, 2013. Denver is one of seven undefeated teams in the NFL. UPI/Gary C. Caskey

Miami Dolphins cheerleaders entertain the crowd as the Miami Dolphins defeated the Atlanta Falcons 27-23 at Sun Life Stadium in Miami, Florida on September 22, 2013. UPI/Susan Knowles

Cheerleaders perform during the Washington Redskins game against the Philadelphia Eagles at FedEx Field in Landover, Maryland on September 9, 2013. The Eagles defeated the Redskins 33-27. UPI/Kevin Dietsch

Oakland Raiderettes entertain in the first quarter against the Washington Redskins at O.co Coliseum in Oakland, California on September 29, 2013. The Redskins defeated the Raiders 24-14. UPI/Terry Schmitt