Ac Rock, Chicago's premier a cappella quartet performs classic rock 'n roll favorites.

Enjoy an outdoor concert with your friends & neighbors every Wednesday evening in June, July and August. (No concert July 4.) Picnics are welcome, but alcohol is not permitted. Performers selected especially for young children & their families are scheduled for the third Wednesday of every month.

Sponsored in part by the City of Warrenville Hotel Motel Tax Fund & Warrenville Library Foundation.