How hard would it be to get red hair dye out?

I have strawberry blonde hair, but I was thinking of dying it a darker shade of red (something like Ashlee Simpson) but if I don't like how it looks, how hard would it be to get it back to the blondish shade I have?How hard would it be to get red hair dye out?
VERY HARD...TRUST ME... there is an old say about red tones... they are the hardest to keep and the hardest to get rid of... you would havve to probably do what I call a double process... where you bleach the hair to remove all the dye and pigment from the hair... then have to come back with a permanent color to give it a normal looking tone... I have seen where it took two even three attempts before getting it right... this is called CORRECTIVE COLOR SERVICE... and it can get very expensive... if you do this (go dark red) and change you mind and want your blond back... expect what I just described... hope this helped you decide:-))))How hard would it be to get red hair dye out?
its going to be close to impossible to go back to your natural hair color. you would first have to strip your hair of the new color you just put in with is about as much as it was to dye it in the first place, then re dye it to your normal color. so dont think about how hard itll be. think about how expensive itll be. is it worth it to you???
unless you use the kind in a spray can, you would have to get it rmoved professionally or else your origional hair color will start to come through and you will get roots and then you will have patches of that color and your old one mixed. it'll look really trashy
Do a strand of hair, then your not stuck, good grief.