Photo gallery: NFL cheerleaders celebrate Halloween
From Harry Potter to Wonder Woman, NFL cheerleaders showed their Halloween spirit on Sunday.
NFL cheerleaders in costume
Tennessee Titans cheerleaders wearing Halloween costumes perform during an NFL football game between the Titans and the Indianapolis Colts on Sunday, Oct. 30, 2000, in Nashville, Tenn. (AP Photo/Mark Humphrey)
NFL cheerleaders in costume
Tennessee Titans cheerleaders perform in the second quarter of an NFL football game on Sunday, Oct. 30, 2011, in Nashville, Tenn. (AP Photo/Frederick Breedon)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders are shown in Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Marcio Jose Sanchez)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders are shown in Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Marcio Jose Sanchez)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders are shown in Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Marcio Jose Sanchez)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders are shown in Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Marcio Jose Sanchez)
NFL cheerleaders in costume
Tennessee Titans cheerleaders perform in the second quarter of an NFL football game on Sunday, Oct. 30, 2011, in Nashville, Tenn. (AP Photo/Frederick Breedon)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders wear Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Ben Margot)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders are shown in Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Marcio Jose Sanchez)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders are shown in Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Marcio Jose Sanchez)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders are shown in Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Marcio Jose Sanchez)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders wear Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Ben Margot)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders wear Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Ben Margot)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders wear Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Ben Margot)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders are shown in Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Marcio Jose Sanchez)
NFL cheerleaders in costume
San Francisco 49ers cheerleaders wear Halloween costumes in the third quarter of an NFL football game against the Cleveland Browns in San Francisco, Sunday, Oct. 30, 2011. (AP Photo/Ben Margot)