Golden Globe winner Michelle Williams strips down and, in an emotional interview, opens up about her relationship with the late Heath Ledger in the February issue of GQ.

On the cover, Williams -- currently basking in critical acclaim for her dazzling role in My Week With Marilyn -- dons a blonde wig and shows a lot of skin in her bra and panties to channel the Some Like It Hot bombshell.

PHOTO: Michelle Williams: Racy GQ Cover and Spread

In the article, the notoriously private Williams, 31, candidly talks with writer Chris Heath about her relationship with the late actor, with whom she had a child with -- Matilda, now 6.