I saw them while super fucked up a couple weeks back, go for total annihilation, it'll be fun. Just get enough fucked up on booze and molly that you don't black out, but that you are close to it.
Also, just wear boxer briefs, get a flask, and stick the flask in between your waist band and your junk. Thats what I did a couple weeks back and it worked perfectly. I actually didn't even notice the flask in my waist line the entire show too, which was cool