A stadium crowd of about 90,000 attendees gathered to mourn Charlie Kirk at his memorial service in Glendale, Ariz., on Sunday (Sept. 21). Brittany Aldean Charlie Kirk Memorial Brittany Aldean, Instagram loading...One more image shows a view of the memorial, which took place at State Farm Stadium. Brittany Aldean Brittany Aldean, Instagram loading... It's not clear whether Jason Aldean went Kirk's memorial with Brittany, but it would make sense if he attended. What is the Significance of Brittany Aldean's Charlie Kirk Tribute?