Best concert I've ever been to?

Got asked this today - and had a long think. I've been to a few - but for the sheer emotion wrapped up in the pit of your stomach, it might well be Sliced Bread, a Liverpool cover band, who played 3-4 times a week at the Cumberland Tavern. The group comprised members of two NWOBHM groups: Rage and Export; lead singer Dave Lloyd was perhaps best known for the Flake commercials. If he'd have had a proper manager, he could have been huge.