One of the best live performances I've ever seen - at least in video form - is this superlative demonstration of why Couting Crows are one of my favourite bands.
August And Everything After - Live At Town Hall (Fair warning, 1h17m long.)
The bare fact of the matter is that the album is superbly written and superbly performed. There's so much soul in this, so much heart, that you can't help but feel it yourself. When played like this, the album takes on a whole new context. I've found a whole new pleasure listening to entire albums as they were originally intended - and a live recording basically recreating that originally album anew is welcome when it is as good as this.
What about you folks? Do you listen to full albums beginning-to-end? What's your favourite live performance?