When I was younger, I used to watch a cartoon/video of some star/princess with her star/princess friends and I think they used to fight evil..

I've been trying to figure out the name of this cartoon character for almost a year now, but I remember so little about the cartoon that Googling it proves futile.

Anyway, here's a picture of a person dressed up as the character for Halloween. (For some reason I remember the character's exact outfit).

http://s599.photobucket.com/albums/tt73/brokenwingslearntofly/?action=view&current=n1310932585_30060103_1357.jpg

If you know, please give me the name of the TV show it was on, it's been killing me for a year!

Thank you :-)