Of the last ten years, LCD Soundsystem was one of the most important, unique, fun bands.
They got to do something almost no band does - go out on their own terms, with one major farewell concert to mark the decision - and have people care about it. I remember reading a Time magazine piece about the experience of being at that show.
Like the Band before them, LCD Soundsystem filmed their final show and turned it into a classic concert movie, plus Chuck Klosterman. Like the Band, this didn't turn out to be their actual final show but it still was their last show wearing the cultural zeitgeist like some tossed-on accessory. And so the term "final" still fits pretty well.
And to start off this final show, they played "Dance Yrself Clean" and made Madison Square Garden bounce. What a cathartic song to play to get the final night started.
The editing of the concert movie makes it unclear if they performed the three-minute opening of this song. I hope they did. On the studio recording, this part of the song is almost inaudible. You have to turn up the sound just to hear what the hell is happening, and you get these murmured verses and beautiful, fun harmonized refrains. Your volume is cranked when the real dance song kicks in. You may as well just leave it loud.