Should I bring a purse to a concert? If not what should I put everything in?

I'm going to my first concert in three days! YAY! Anyway I want to bring a camera, money, ID, and cell phone. I could put everything in my pockets except for the camera. Well the camera fits but it looks ridiculous and isn't super comfortable plus it could fall out. I would rather not have a purse because I am super forgetful and, coming from a relatively small city and going to a pretty big one, I'm not used to the fact that if you set something down for a second someone might steal it! I'm almost sure I'll loose it if i bring a purse, but I really want to bring my camera and I don't know what else to do with it besides put it into a purse? Any suggestions?