...it's genius! Seriously, this works on so many levels.
1. WH already have the cutesy image, right. This just adds to that. Very cute vid imo.
2. This will be great fun during concerts. I can see everybody doing the dance
3. Perhaps this song can fill the gap that Tsukishima Kirari left in a lot of kids' lives!
edit:
it also gives me a 'Nakagawa Shoko - Sukashikashipanman wa sukoshi hen' kinda vibe, and that's song seems to work great for her during concerts and such.