A while later, Iggy came to sound check. Everyone in the place just stood there staring. He came to the stage and we put together a blues-based jam that we could all remember. Iggy made up a chorus and we all made up notes. Hours later, we were at the end of the set and I was about to introduce our surprise guest. I looked over to stage left and there was Iggy, his eyes staring holes through me. It occurred to me that he was going to kill us all. I introduced him, and the place went nuts as Iggy came running onto the stage. Within a minute, we were all backed up against the gear, having wisely chosen to stay out of his way to avoid injury. The song went down well and all came through intact. We remembered it as the night we played with a human tornado. After the show, storm becalmed, he politely thanked us for letting him join us and left. It was one of the best nights in the life of our band, a true high point.