Image by Picture: Flickr user Chrys; Video: Geoff MarshallImage by 20081222-unsilent-night.jpg
Update December 22, 11:30 a.m.: Our videographer Geoff Marshall was there and has added a video of the event for your viewing pleasure (that's above, if you have Flash).
And The Charleston City Paper did their own video, but I like ours more -- not that I'm biased or anything ...
What is Unsilent Night? It's Christmas caroling done with MP3 players, CD players, and good old-fashioned boom boxes. You can check out these clips to get a better feel for it.
User Chrys over at Flickr attended and shares a splendid selection of photos.