A look at the Bruno Mars 24K Magic Tour Bruno Mars is in the midst of his 2017-2018 24K Magic Tour. I attended the August 16, 2017 show at the United Center in Chicago. If you're attending a future show here are a few nuggets that might help in your enjoyment of the experience. Timing Opening act Camila Cabello (formerly of Fifth Harmony) takes the stage at the scheduled concert start time. For the Chicago show, it was 8pm CST. She performs for just under a half hour. So if y