Before it was a 40,000-person festival, it was a Fourth of July picnic outside the Museum of Science and Industry. This week, Tony Hatchett of the Chosen Few DJs joins Notes from Chicago to trace house music's roots from The Warehouse and disco-era South Side parties to becoming a founding member of the crew behind the world's longest-running house music festival.

Follow Chosen Few DJs:

* Website: https://chosenfewdjs.com/

* Instagram: https://www.instagram.com/djtonyhatchett | https://www.instagram.com/chosenfewdjs/

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