How can I straighten a doll's hair?

I've been thinking about shortening my 'Funk Out' Felicia's hair for a while now. I have cut my dolls hair very often , sometimes I cut there bangs so they have shorter strands instead of fully grown out ones. I luuv doing clurly hair cuz the curls usually turn out fabulous! I believe if I gave my doll a hair cut it might improve her overall appearance, although I've never done a hair cut on a Bratz before. Don't just listen to me, go and try it y'self!