Are you ready for some football? The 2013 NFL season is getting into full swing, and while football fans will be tuning in with their TVs or packing into the stadiums this season, many of your favorite stars will be among the crowds. Ashton Kutcher  and Mila Kunis  showed their Chicago Bears pride in Pittsburgh, PA, this weekend, while fellow actor Joe Manganiello is an avid Steelers fan. Kate Mara has also been one to hit the sidelines, and Marisa Miller  showed off her adorable little San Francisco 49ers fan during a preseason game this year. See all the stars who are cheering on the return of football!
Ashton Kutcher  and Mila Kunis  cuddled up as the Chicago Bears played the Steelers in Pittsburgh on Sunday.
Fergie , Jennifer Lopez , and Kim Kardashian  cheered on the Miami Dolphins from box seats in September 2010.
New England Patriot Tom Brady  and wife Gisele Bündchen chatted after his team's loss in 2012.
Jimmy Fallon  greeted Mark Sanchez on the sidelines before a New York Jets game in October 2011.
Matthew McConaughey  and Kate Hudson  were together in 2003 for MTV's First Annual Super Bowl Tailgate Spectacular.
Joe Manganiello showed his Pittsburgh Steelers pride at a snowy game in December 2010.
Then-couple Katie Holmes  and Tom Cruise  were at the Super Bowl to watch J Lo and Marc Anthony 's 2007 performance.
Jay Z hung out on the field before a Dallas Cowboys game in September 2008.
Jessica Simpson  took a solo shot as she watched the Super Bowl in 2012.
Brad Pitt  and his son Maddox Jolie-Pitt took a seat on the bench before New Orleans Saints playoff game in January 2010.
Alicia Keys  and Jennifer Hudson  prepped for the Super Bowl on the field in New Orleans in January 2013.
Hayden Panettiere  sat in the stands of the New York Jets vs. Buffalo Bills game in November 2011.
Bruce Willis , Demi Moore , and Ashton Kutcher  were with Tallulah and Rumer Willis in 2007 to see the Colts play the Bears.
Kate Mara showed her New York Giants pride on the field at the Meadowlands in September 2010.
Kim Kardashian  got almost as much attention as the 2010 game when she showed up to cheer on the Saints' Reggie Bush.
Kevin James got excited on the field at the NY Jets game in October 2012.
Kurt Russell and Kate Hudson  watched the Giants play the Patriots in 2008.
Owen Wilson  posed with the pigskin on the sidelines in 2011.
Will Smith  introduced Alicia Keys , who sang the national anthem in 2005.
Marisa Miller  debuted her son, Gavin Lee Guess, during a preseason game for the San Francisco 49ers at Candlestick Park in August 2013.
Beyoncé Knowles made her way to the field at the Super Bowl in San Diego in January 2003.
Jon Bon Jovi was greeted on the sidelines by Tom Brady  as the New England Patriots took on the St. Louis Rams in February 2013.
Josh Duhamel  made his way into the Miami Dolphins in January 2010.
Candice Swanepoel brought a dog to the Super Bowl in New Orleans in January 2013.
Ian Somerhalder  struck a serious pose while watching the Super Bowl in New Orleans in January 2013.
Nina Dobrev  and her friends were jumping for joy outside of the Superdome for the Super Bowl in January 2013.
Michael Douglas hit the sidelines in his Jets gear before a game vs. the San Diego Chargers in October 2011.
Demi Moore  and Ashton Kutcher  got ready for the game on the sidelines in 2010.
Jason Sudeikis was in attendance at a New York Giants vs. New Orleans Saints game in November 2011.
Katharine McPhee hoped that the 49ers would make a comeback during the New Orleans Super Bowl in January 2013.
Neil Patrick Harris  and Jon Cryer got nervous during the Superdome blackout in New Orleans in January 2013.
Philip Seymour Hoffman  showed his New York Jets pride on the field before a game at Met Life Stadium in December 2011.
Usher  took in a Philadelphia Eagles vs. Atlanta Falcons game in September 2011.