Here’s a Top 20 list of Chicago concerts Jam has produced on this day in history including Hozier, Silversun Pickups, Beck, and Styx. If you could go back in time and attend only one of these shows, which one would you choose? . #onthisday #OTD #onthisdayinmusic #hozier #beck #silversunpickups #anidifranco #bethhart #poidogpondering #weezer #styx #acdc #menatwork #averagewhiteband #rocknroll #classicrock #concerts #throwback