Must've Been a Beautiful Babe

It's hard to picture celebs like Leo, Sarah Jessica and Nicole as diaper-clad tots, but even those famous folks were once mere munchkins. Stroll down memory lane as we peek at big stars back when they were little tykes.

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FAIR MAIDEN

Where did Nicole Kidman's luminescent skin come from? Just look at her at age 1 with look-alike mom Janelle. But try telling the Best Actress Oscar winner (for The Hours) that she was a beautiful baby: She told PEOPLE in May that growing up, "I was the plain one."