please, please!!!!!!!!!!!!!!
go back to being a redhead or a brunette!!!
shareFrom her IMDB minibio page (so I think your efforts are in vain):
Is a natural brunette. She was asked by producers of "That '70s Show" (1998) to dye her hair red for the role of "Donna Pinciotti". Later in the show, in 2005, she dyed her hair blonde for a movie role playing the part of a serial killer. The producers of "That '70s Show" (1998) liked it, and asked her to keep it. Laura later decided she liked it, and has been blonde ever since.