The Oscar-nominated actress goes uber-elegant on the cover of the magazine, shot by David Slijper, in a voluminous violet gown (and bright pink lips).
Switching it up for the inside fashion spread, Hathaway plays the vamp in sexy, curve-hugging all-black dresses -- one adorned with metal -- and donning a more subdued, yet supremely sensual, beauty look, though not ditching her hot pink pout.
In the accompanying article, the down-to-earth actress explains that over the years she has come to accept her now signature oversized doe eyes and super full lips.
"I think I've got really weird features," she tells InStyle. "I have very large features on a very small head. But, you know, I'm not going to beat myself up... I look like myself, and I think at the end of the day, as nice as pretty is, authenticity is more important."
Hmmm... we're sure plenty of folks would argue that Hathaway is as pretty as they come!
And next month, a temporarily platinum blonde Hathaway plays The White Queen in Tim Burton's highly anticipated remake of "Alice In Wonderland."
In the meantime, scoop up the March issue of InStyle, on newsstands Feb. 12.
Plus, check out Hathaway's other March cover which is causing quite the stir.