What's the best concert or live performance you've ever attended, and what made it unforgettable?"
For me it was Wolfmother at a major German festival. I didn't really know them before and did not expect too much, but was totally blown away by their performance.
Decades ago I saw the Rolling Stones. It was held in an arena. I was fortunate enough to sit in one of those skyboxes. Because of its location to the stage, from a corner of the skybox you could actually see behind the stage. This area was just a huge curtain as all seating behind the curtain was closed. During certain songs some band members would go behind the curtain. And it was a blast to see some of them jugging down vodka which was clearly visible from my vantage point. And the show was great.