It’s a cliche that rock and roll makes you free, but here’s a story that proves it.

Twenty years ago, the Rolling Stones played a concert in Prague. That may not sound like a big deal, but this was just months after the collapse of the Soviet Union and its iron-fisted control of Czechoslovakia. For many Czechs, like then-16-year-old Eduard Freisler, seeing the Stones live was the moment they knew they were free of oppression. Here’s his remembrance of that remarkable day.