While NFL teams compete on the field, these cheerleaders entertain the fans from the sidelines.
San Francisco 49ers kicker David Akers celebrates with cheerleaders after his team defeated the New Orleans Saints in their NFL NFC Divisional playoff game in San Francisco on Jan. 14, 2012.
Warner Bros. Television
U.S. Army Signal Corps
Courtesy of NOAA/Institute for Exploration/University of Rhode Island
David Shankbone/Wikimedia Commons
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