I'm heading to a concert. How do you.....

So I use clinical strength secret completely clean for my underarm which I guess seem to work also for odor. But the one I actually need opinion about is what do you put on your underboob to prevent sweat and smell? I'm heading to Vegas not only for a road trip, but because I'm attending a concert at night time and I don't want to smell or worry about sweat there. What products do you guys use? Anything that I can just use right away please