Umphrey’s McGee have announced that they will return to Ravinia in Highland Park, IL (just outside of Chicago) for a show on Friday, August 14. The performance—a part of the venue’s Ravinia Festival—will also feature a special guest appearance by the Chicago Mass Choir, who will join the band for a few songs throughout the show.

Tickets will be available to general public on at 5am CT on Thursday, April 28, though VIP tickets will be available on Friday, April 17. Fans that score lawn tickets will also be able to bring their own food and beverage, lawn chairs, tables, coolers, etc. to the event.

The Ravinia Festival also confirmed the rest of its lineup today. The spring.summer concert series will feature performances by Tedeschi Trucks Band and Sharon Jones & The Dap-Kings (June 21), Sherul Crow (June 25), The Doobie Brothers (June 30), Brian Wilson and Rodriguez (July 6), Steve Miller Band (July 10), Aretha Franklin (July 11), Steely Dan (July 24 and 25), Brandi Carlisle and old Crow Medicine Show (July 31), Harry Connick Jr. (August 7), Chicago (August 22 and August 23), ZZ Top (August 27), Santana (August 29), Jackson Browne (September 5) and many more.