Through both work and personal preference I've seen a lot of Bollywood in my time. Combining dance AND a capella singing? Coming from someone who can barely chew gum and walk at the same time, that's just pro.
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.
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!