https://www.wrtv.com/lifestyle/history/1990-farm-aid-iv-links-farming-environmental-causes
1990: Farm Aid IV links farming, environmental causes
Sep 21, 2023 - Nearly 50,000 fans attended Farm Aid IV in 1990. The 12-hour show featured acts like Garth Brooks, Crosby Stills Nash and Young, John Mellencamp, and Willie...
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