At first I thought the wedding had been crashed by a crazed Mickey fangirl from the way she unceremoniously kicks the bride's train out of her way. But nope, looks like they're both from the same dance planet! Beam me up!
I've seen a few versions of Beyonce's Single Ladies in my time. This gets a special nod because of the number of people, folksy venue, and distracting lack of pants. Oh and there's a really cute proposal at the end.