15, Rush, Checkerdom in St Louis (No idea if it is still called that), 12th row on the floor.
My older brother beat me though, he saw Queen on a Jr High School field trip in 8th grade, which would have made him 13 or 14. I am still amazed that a
little school in a small town in Kansas did that, but they had a concert field trip every year. The year before it was Kiss. Unforutnately we moved and I never got my chance.
Tom