Jennifer Lawrence changed her outfit three times yesterday -- but only one of her looks left tongues wagging.

While the star of "The Hunger Games" looked great in her black Raoul diamond cutout dress (left) and the black and gold Prabal Gurung outside of Letterman (right), it was her green Calvin Klein Collection number that really stole the show.

The 21-year-old wore the revealing ensemble to a screening of her highly-anticipated film at the SVA Theatre after her "Late Show" taping, where she was joined by co-stars Liam Hemsworth and Josh Hutcherson.

These three looks are only the latest in Jennifer's red carpet tour for "Hunger Games" -- check out all her premiere gowns in the gallery above.

Which one is your favorite so far?

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