Milwaukee's Summerfest isn't billed as the world's largest music festival for nothing. This massive summer music spectacular showcases over 800 acts across 11 stages spread out over 11 days, drawing almost a million fans every year to enjoy performances by big-name acts representing all genres of music. In addition to all the fantastic music, there's a bevy of delicious local food vendors, carnival rides, a Children's Theater & Playzone and a brilliant fireworks display. Take a ride on the Sky Glider to get a birds-eye view of the festival, or enjoy the music from Lake Michigan's beautiful shoreline. And because this is Wisconsin, there's no shortage of ice-cold beer, and don't forget to try the deep-fried cheese curds! Past headliners have included The Grateful Dead, Metallica, Prince, Bruno Mars and Katy Perry. 2021 Confirmed Headliners include: Luke Bryan - June 25, 2021 Khalid - June 24, 20201 Blink-182 - July 2, 2021 Chris Stapleton - July 8, 2021 Dave Matthews Band - July 1, 2021 Halsey - July 3, 2021 Other artist to be confirmed.