Best of 2007

Birthday Girls Who Made 40 Fab in '07

Julia Roberts tops the list of stars who prove that age ain't nothing but a number

NICOLE KIDMAN

Turned 40: June 20
She's more glamorous than ever, but it wasn't always that way. "I don't know if it happened, or if it was just me making the most of myself," Kidman says of her gorgeous looks. Since she married Keith Urban in 2006, the couple have had ups and downs but, at 40, mom of two Kidman tells Interview, "My husband and I are committed to each other and deeply in love."