From PEOPLE Magazine Click to enlarge
1 Month After!

Penélope Cruz

in L'Wren Scott

How's this for unfair: The actress, 36, just gave birth to her first son, Leo, in January, is married to Best Actor nominee Javier Bardem and she eats carbs.

4 Months After!

CELINE DION

in Giorgio Armani Privé

The singer, 42, showed off a slender silhouette that bared no hint of the more than 50 lbs. she gained carrying her twin boys Eddy and Nelson.

9 Months After!

AMY ADAMS

in L'Wren Scott

Since welcoming her daughter Aviana last May, "I've been working out when I can, and I'm trying to eat in a healthful way," Adams, 36, said.