This is the Best Action & Best Of Show Winner of the Anime Boston 2006 Anime Music Video Contest.
The anime used was "Princess Tutu" and the song used was "Håll Om Mig" by Nanne Grönvall.
Note: I am *not* the creator of this amazing anime music video. I merely fell in love with it when I saw it at Anime Boston 2006. The creator of this AMV, however, is Marisa Panaccio of Tidirium Studios.