Check this one out! Frame by frame animation, I'm not toally sure because of all the post on the texture of the paper or background, but I can't really tell if this is made by hand or digital. Also I don't get the onion skin effect of the girls on a second plane, but what I do know, is that the motion seems awesome. From the choreography to the rythm with the song. Maybe the author give us some insight into the technique!
And any information on his webpage will be appreciated.