The look may be new to Williams, but we've seen it before. Nude.
Lindsay Lohan channeled her version of Monroe in 2008 for New York magazine with Bert Stern, the same photog who shot the original, iconic pics of Monroe titled "The Last Sitting."
So who makes a better Marilyn?
Williams is tackling the role of the iconic actress for the upcoming movie My Week With Marilyn. It's the story of a young British film assistant tasked with showing Monroe a slice of English life while she's in the country filming The Prince and the Showgirl with Laurence Olivier in 1956.
So what do you think? Which actress best embodies the blond beauty?