Summary More than 100,000 fans known as “ARMY” are expected to pack Baltimore for two sold-out BTS concerts at M&T Bank Stadium, with the first show held Monday and the second set for tonight. More than 100,000 fans known as “ARMY” are expected to pack Baltimore for two sold-out BTS concerts at M&T Bank Stadium, with the first show held Monday and the second set for tonight. The Baltimore City Department of Transportation is urging anyone traveling downtown to allow extra time and use public transportation if possible. Baltimore is one of 12 North American stops on BTS’ worldwide tour. READ: Travel Guide: Baltimore braces for BTS concert crowds at M&T Bank StadiumThousands of fans gathered on Monday, despite severe weather that temporarily disrupted the show.