April 07, 2014 12:00 PM

Jaime King, 34

In addition to using L.A.-based organic-meal-delivery service Paleta, the 5’8″ Hart of Dixie star, who gave birth to son James-Knight in October, used DVDs like the Ballet Beautiful series by Mary Helen Bowers. “Eating nutritiously and staying creative and active during and after my pregnancy was key,” she tells PEOPLE.

Fergie, 39

The 5’4″ singer, who is working on an upcoming solo album, trained with Don “DB Donamatrix” Brooks to trim her waistline. She also found fun in fitness: “I’m doing belly-dancing yoga,” she told Ellen DeGeneres, adding that she’s in no hurry to drop pounds since giving birth to Axl in August.

Kate Winslet, 38

The Divergent star – who shot the film while pregnant with son Bear- hasn’t gotten around to a postbaby gym routine. “Honestly, I haven’t been doing anything,” said the 5’6½ ” actress, who gave birth in December. “Mother Nature has been kinder to me this time. Nursing, busy, baby life. That’s all.”

Halle Berry, 47

Just five months after son Maceo-Robert was born, the 5’6″ actress wowed in a vintage Versace dress. Crediting her figure to “breast-feeding while working” on the set of her new show Extant, the mom of two admits, “Having a little baby [is] a whole new life for me all over again.”

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