I have seen the 70's, 80's, missed the 90's, 2000's and now the 201's versions or iterations of Chicago. Last night at our local fair(10th largest in the world), they just nailed it.
2+ hours of non stop music and fun. Only break some of them had was during a great drum duet during "I'm a Man". They really seemed to enjoy themselves on stage and had the crowd moving and shaking from the opening. Sat center stage, 7 rows back. They had the sound dialed in within a minute of the opening song and never looked back.
Highly recommend if you have a chance. They will be down in Napa, Ca tomorrow.
Events - Chicago The Band Music Community
Here is from last year with Earth, Wind and Fire.