The artist, with the hit single "Tipsy," will take the stage Sunday, Aug. 18.
Shaboozey also contributed to Beyonce's chart-topping album "Cowboy Carter."
Tickets go on sale this Saturday at 10 a.m. on Ticketmaster.
According to the fair's website, tickets start at $20; a pre-show party can be added on for $30.
Others performing at the 2024 Illinois State Fair include Keith Urban, Jason Isbell, Lil Wayne, Jonas Brothers, The Smashing Pumpkins and Miranda Lambert.
The fair takes place from Aug. 8 to 18 at the state fairgrounds in Springfield.
Visit statefair.illinois.gov for more information.