The 2025 Iowa State Fair marks the 171st year of the state's biggest event. It's a summer tradition that draws more than 1 million people to the east Des Moines fairgrounds.

Video above from KCCI's archives: Garth Brooks headlines 1994 Iowa State Fai

This year's fair opened Thursday and runs 11 days through Sunday, Aug. 17.

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Here's what you need to know about Day 7 of the 2025 Iowa State Fair.

Day 7: Wednesday, Aug. 13

Grandstand : Hairball’s Silver Anniversary Tour, 8 p.m.; tickets

Free stage headliners : Tanner Adell at the Susan Knapp Amphitheater, 8 p.m.; Herman’s Hermits starring Peter Noone at the Anne and Bill Riley Stage, 7 p.m.; Allie Colleen at the MidAmeri

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