How can I escape a metal detector to get a small camera into a concert?

It's about the whole size of an average man's hand. the seller of the tickets didn't have any idea if cameras are allowed. I've heard that some concerts will confiscate the camera at the door. I don't want that to happen and I don't want to use a cell phone, because this could be the last time I'm able to see a concert, especially this one. I'm old, he's old. It's very distant seating, outdoors. 30,000 +??? Or, is there some other way to get one in? Nikon s6100