You have to think that the only reason this thing didn't air at the event or during the HBO broadcast is because of Billy C. I'll have more to say about that once I get around to posting my take on the BJK exo.
But all that aside, I think the most adorable thing about the video is how Ana still looks like a kid in that arena. Just the way she's sitting there looking around, she looks like she got to practice early and is waiting for everyone else to get there.
