I think the original horn section is still there and maybe Danny Serafine, but when Terry Kath died, Chicago died with them. I don't think Peter Cetera or Robert Lamm are in the band anymore. I've gone to a bunch of classic rock concerts there over the years. I can't recall any done by 10. Great venue. Pay for reserved seats under the roof. Parking sucks beyond belief and is totally random with respect to how fast you get out. I have not figured that model out yet. You can pay for VIP parking close to the entrance. I have either gotten out of there really fast or last. It defies explanation. I have seen VH, REOx4, Styxx4,Tesla, Joan Jett, Loverbody, Def Leppard, Kenny Wayne Shepherd, and a few others there over the years, and since it's an outdoor venue, it's not been that loud.