Body After Twins!

Rebecca Romijn: Before
Romijn and Jerry O'Connell welcomed twin girls Dolly Rebecca Rose and Charlie Tamara Tulip on Dec. 28, 2008.

Rebecca Romijn: After
A month after welcoming twins, the Ugly Betty star -- who said she was "a beached whale" near the end of her pregnancy -- showed off her fit body while on a walk in Calabasas, California, on Jan. 29.

Angelina Jolie: Before
Jolie and Brad Pitt gave birth to Knox and Vivienne on July 12, 2008 in Nice, France.

Angelina Jolie: After
Although the actress says her post-baby body is all thanks to "a good dress," Jolie looked svelte at the NYC premiere of Changeling on Oct. 4 -- only three months after welcoming the latest children to her brood of six.

Jennifer Lopez: Before
Lopez and Marc Anthony welcomed Max and Emme on Feb. 22, 2008 in Manhasset, New York.

Jennifer Lopez: After
The star attended the Shine a Light premiere in NYC on March 30, one month after giving birth.

Marcia Cross: Before
Cross and Tom Mahoney welcomed twin girls Eden and Savannah on Feb. 20, 2007.

Marcia Cross: After
The Desperate Houswives star -- who was on bed rest for the last month of her pregnancy -- showed off her thin frame three months after giving birth, at the ABC UpFront in NYC on May 15.

Julia Roberts: Before
Roberts and Danny Moder gave birth to Phinnaeus and Hazel on Nov. 28, 2004.

Julia Roberts: After
Three months after welcoming her twins, the actress presented an award at the 77th Annual Academy Awards on Feb. 27 in Hollywood.

source:usmagazine.com