How do I get my boyfriend to do something he doesn't feel comfortable doing?

I bought concert tickets for my boy friend and I, to see his favorite band. I was going to surprise him. I was a little concerned though, because he doesn’t like being in crowds, but I thought it was his favourite band and it meant I was coming home, that he’d want to go regardless.
Unfortunately, when I told him, his response was “that’s awesomem you will have to take lots of pictures.” Not what I wanted to hear. So I made it clear that I was disappointed. He then explained that it was in fact because of the idea of the crowd… but said he would think about it, and that he felt terrible that I tried to do something nice for him, and he sort of ruined it.
So, WITHOUT guilting him into coming, how do I get him to come with me in a positive manner?