See http://www.nicovideo.jp/watch/sm4059792 for full quality, framerate suffered a bit during conversion.

"sparkle...." hee hee, This version always cracks me up.

Any idea of what they are saying between dances?

I know at the end, Momizi is saying something about how she's a dog, not a cat. Past that, I'm not fluent enough in Japanese yet to know.