Warped Tour- Please Help

I'm freaking out, because the only reason I'm going to Warped Tour is to see/meet Of Mice & Men(which is a bit shallow, but whatever). So today, I found out that apparently you have to some sort of pass/poster to meet them. Is that true? If so, how do I obtain one of these things? Do I just walk up to the tent where they're doing their signing and ask for a poster/pass to meet them? Does it cost money? If so, how much? I'm really scared. I need to know, I'll be heartbroken if I don't get to meet them. Someone please give me answers.


Literally me if I don't get to meet OM&M.