The Chicago Park District's Night Out is the Parks brings Tuesdays in the Gazebo Concert Series to Welles Park! This week's performer is: Greasy Gravy!Trio Matt Hendricks, Rick Sherry, and Jeff Parker play acoustic blues, ragtime, jazz and originals.We suggest bringing a blanket, a chair or whatever you'd like to make yourself comfortable during the concert. This event is co-hosted by the Welles P