Khalid with special guest Jessie Reyez will headline the American Family Insurance Amphitheater on June 27.
This will be the first time that Khalid has performed at Summerfest.
Tickets go on sale on sale Friday, February 21 at 12:00 p.m.
Other headlines include Justin Bieber, Luke Bryan, and Ozzy Osbourne.
For more information, go to Summerfest.com.