Janet Jackson will be performing live at the Sprint Center in Kansas City on October 19, 2017. This deal from Groupon will get you a discount of up to 41% on your tickets. Click here for the discount. Through August 24, Groupon is also offering an extra 20% off on this and all local deals with the promo code HAPPY20 (you can use the code for up to 3 deals).
I don’t have an expiration date for this one, so when the link stops working, the deal’s over.