If you've been to a Cubs game at Wrigley Field lately, you've probably heard the O.A.R. song "This Town" played during the game. Following the conclusion of the Cubs' game against the Orioles, the band will set up in a parking lot adjacent to Wrigley for a 90-minute performance. The free event begins at 11am, but O.A.R. won't begin playing until the game ends, so plan accordingly.