Dierks Bentley will headline the final event of NASCAR’s 2026 Busch Light Summer Music Series, performing at Iowa Speedway on Aug. 9 before the NASCAR Cup Series Iowa Corn 350 Powered by Ethanol to complete this year’s three-stop concert series. The Aug. 9 concert will take place before the Cup Series race and is included with a Sunday race ticket. Vincent Mason opened the program at Watkins Glen International in May, while Mitchell Tenpenny is …