The annual free event is Aug. 18-19 in downtown Russellville. Activities include arts and crafts vendors, variety of watermelon contests, car, truck and tractor shows, food vendors, live music, children’s activities and games and free sample of watermelon. Opening ceremonies at 5:45 p.m. Aug. 18, with Purpose performing on stage at 6 p.m., followed by First Born Sons and 7 Bridges. Music begins at 5 p.m. Saturday with performances by Cadillacs, Southern Heat, Joseph Baldwin Band and headliner Aaron Tippin. Additional free entertainment is from 10 a.m. to 4 p.m. Saturday at Roxy Theatre, First Baptist Church Park and during the tractor show. Hours are 6-10 p.m. Friday and 10 a.m. to 10 p.m. Saturday. Admission is free. Details: franklincountychamber.org.