There seem to be quite a few people from all across the country who have set up Christmas light shows that go to music. They have set up shortwave radio frequencies that people tune into on their car radios so they can hear Christmas carols. The lights decorating their houses and yards are then coordinated with the songs playing on the radio.
I went to see two of them in Northern Virginia last night and the following video features some highlights from a show in the Vienna area (close to Tyson's Corner). I couldn't catch all of the lights because they had a pretty big yard, but tried to get where the main action was taking place. Also, even though we had the radio playing in the car you might want to turn up the volume on your computer so you can hear the music.
What is nice about this show, in addition to it being entertaining, is that they are also asking people to donate to the Make a Wish Foundation. For those of you who don't know, the mission of the Foundation is to "grant the wishes of children with life-threatening medical conditions to enrich the human experience with hope, strength and joy." With everything going on in the world today, an organization that aims to provide children with "hope, strength and joy" is most definitely something worth contributing to.