Rachel McAdams Can Pull off Literally Any Hair Color and We Need to Talk About It

We all know Rachel McAdams from iconic films like "The Notebook" and "Mean Girls." But if you've followed her career over the years, you know she's run the gamut of movie genres -- and hair colors. Yes, we are here to talk about our dear Rachel and examine how, exactly, she manages to pull off any hair color she so chooses. How is it possible? Does she even know how lucky she is?