Pictured is but a few of Marshalltown’s own Cornflake Cloggers practicing Wednesday to the spirited “Rocky Top” in a local garage. The popular local group is getting ready for a 2 p.m. Thursday performance on the Susan Knapp Stage at the Iowa State Fair. The performance is open to the public and free-of-charge. The group has a strong following locally, having performed over the years at Oktemberfest, the Marshall County Conservation Commission’s Prairie Heritage Days, and many other Central Iowa venues. Located at 3000 E. Grand Ave. in Des Moines, the ISF opens 9 a.m. Thursday and concludes 9 p.m. Aug. 18. Visit www.iowastatefair.org/entertainment/fair-schedule/.