Metallica at Big Day Out 2004. They started early, played for an hour and a half or more, went off, came back on, played for another half an hour, went off, lots of people thought they were finished and started running off to catch the end of basement jaxx, then boom boom boom huge fireworks and they started playing 'one'. Was cool to see the wave of people leaving immediately turn around and run back. Then after it was all finished they stayed behind and posed for photos with the fans.