this, this, and THIS, which is pretty much the best idea for a video since someone first said "Hey--we should tape people doing it."
So it was just assumed that their next video would be nothing short of shutthefuckup. Which it is. This one is less with the hijinks, but spares nothing in the "holy shit" department. Last Leaf is actually a beautiful song, and this might be the first time one of OK Go's songs stands out over the crazy concept video.
Now I just want to know what they did with the toast when it was over. Snacks? Birdfeed? Toast fort? I bet it was a toast fort.