Weddings usually follow a pretty standard formula, including the songs and dances at the reception. The bride and her father will dance to "Butterfly Kisses." The DJ will play "Thriller" twice. But in recent years, people have been mixing things up with elaborately choreographed dance numbers performed by the wedding party. While many of these are painful to watch, some of them turn out a lot better than they have any right to be. Here are the best:

1. They're breakdance fighting!