The Milwaukee Brewers are hosting a 'Pack at the Park' theme night on Wednesday, June 21 against the Pittsburgh Pirates at Miller Park.
The Brewers will give away a Packers-themed baseball cap to fans with a special ticket package as these two classic Wisconsin sports franchises team up.
There will be plenty more Green Bay festivities throughout the game - the Packers' president Mark Murphy will throw out the first pitch, and the Packers' drum line will perform during the night.
Murphy will also field questions from fans in the Northwestern Mutual Legends Club.
Fans will need a special ticket package to take advantage of the hat giveaway - get more information here.