What is the best way to add red highlights to naturally blonde hair currently dyed black?

Hi, I use Lo'real Paris Natural Black Semi Permanent hair dye on my blonde hair, and I would like to add red highlights like this.





http://img134.imageshack.us/img134/287/blackhairredhighwr7.jpgWhat is the best way to add red highlights to naturally blonde hair currently dyed black?
You would have to dye the parts you want red blonde first, otherwise the color won't take.





The way stylists achieve that look is by dying the entire head blonde first, then sectioning off highlights red, and then adding the black. You have to work in reverse. You might even need to strip the color off pieces.





PS-- Red is not any harder to change than any other color. Don't listen to that guy.What is the best way to add red highlights to naturally blonde hair currently dyed black?
There's kits in the hair coloring department
please!!!, dont put red in your hair. not to be mean but, i put red colour in my hair and even after geting it reydyed brown over it several tymes it always comes back through. red colour is veary hard to reverse once put on. so please think twice.