With support from Avril Lavigne and Iann Dior, MGK brought his huge headlining tour to the American Family Insurance Amphitheater.

BY TER STAFF
Machine Gun Kelly is on an entirely different level since his last performance at Summerfest. Going from a crowd of 4,000 to 20,000 in just a couple years, fans came out in huge numbers to catch the “Mainstreet Sellout Tour” at the American Family Insurance Amphitheater.
MGK was joined by opening act Iann Dior and the pop punk icon, Avril Lavigne, for his huge Milwaukee performance, which was also the largest selling show of Summerfest. If you weren’t in attendance last night, you definitely missed out!
Check out our favorite photos from last night’s performance below.
Machine Gun Kelly
Avril Lavigne
Iann Dior