This guy had balls. I only caught the last half. Basically Ian told the security guards to let him on stage, asked him who he was and stuff, and said, "right, higher or lower!?"
And the crowd started shouting higher or lower. And then the guy goes, "Cheese TENT!"
Amazing. Then he said, "right, now you're so high, you're gonna have to stage dive, no, only joking. Right go back down. Please don't hurt him, he's only having fun ^_^"