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Move over Mila Kunis; Jennifer Lawrence was crowned the new "Sexiest Woman in the World" by FHM magazine this week.

Lawrence, 23, moved up from the No. 20 spot last year to dethrone reported mama-to-be Kunis, who dropped to No. 6 this year.

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So why the huge jump for the "American Hustle" star?

FHM cited the actress's decision to "fearlessly" chop off her hair into a chic pixie cut, her revelation that Jack Nicholson sent her champagne and flowers after crashing her post Oscar-win interview last year, and her ability to rally an entire nation in "The Hunger Games: Catching Fire" among the reasons that the magazine and the world have fallen " face-over-arse in love" with Lawrence.

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Also in the top 10 were British actress and "Coronation Street" Michelle Keegan at No. 2, Rihanna at No. 3, Kaley Cuoco-Sweeting, Beyonce and Scarlett Johansson.