What's a dance like Girls' Generation where they do the genie dance?

It's called a lap dance because they show their beautiful thighs, and a shuttlecock dance because the dance is like playing shuttlecock.

But it's hard to say what kind of dance it is because Girls' Generation and girl groups like KARA don't have a set type of dance, and I've seen it in a posting before and I forget, but it's not a specific term for a dance.

If you want to learn it, you can watch the online instructional video wow ~ or quite simple ~