Ne-Yo, Joe & Nick Jonas, Terry Crews, Jesse Williams Celebrity NFL Madden 13 Pro-Am Flag Football Game in Grant Park June 15, 2012 Hollywood’s hottest, NFL’s finest and Chicago’s greatest are coming together June 22nd in Grant Park all in the name of our country’s favorite sport- FOOTBALL! Clearly this is not your everyday football game- this is the EA NFL Madden 13 Pigskin Pro-Am Celebrity Flag Football Game Launch!! Did you catch all of that?