What song should I choose?

Im making a video for a friend as a joke, as it is her birthday. But i dont know what song to choose to be playing over the whole video. The story line is a bit like a fairytale, There is a beautiful girl whos friends become bewitched, and in turn they bewitch her. and then her boyfriend rescues them all and everything is good again. Silly i know, but its sort of a private joke, anyway any suggestions for music would be SO appreciated. I want the music to be very beautifull and quite surreal. All i have thought of so far is bella's lullaby from twilight, or fairytale by Kalafina, and im not sure about either of those.