Rock it tonight
Besides being a cool use of Legos, this video is the focus of a mini-controversy over copyright. Basically, the Lego company won't let Spinal Tap include the video on a concert DVD, since the Lego pieces are protected by copyright. The company's position is utterly logical and even sensible - they weren't turned on by the obscentiy associated with the Spinal Tap concert footage, which they see as a commercial use - and certainly within their rights, though the stories have a prejudice against it, as do most media stories about copyright these days. (By contrast, Lego has taken no action against the original video, since they don't see it as a commercial use.)
Here's one story in the Times.