You're right ! She's the one who choreographed the dance :) Her name is Rina Nakasone, she's part of the Beat Freaks, you should watch their amazing performances at America's Best Dance Crew ! ( runners up ) Have fun ! :)
Super cooooooooool dance style!! But i have to mention here. The training video is always better than the real MV becoz the dancers don't have to wear the High Heels.The high heels can slow your dance moves by at least 2 to 3 times as vigorous.