Krista Kennell/Sipa

WHAT SHE WORE A mod black and white cocktail dress from Narciso Rodriguez with black tights, patent pumps and an oversize pewter clutch

WHERE The Los Angeles book party for Mark Liddell's Exposed: 10 Years in Hollywood

WHY WE LOVE IT Jessica Alba looked subtly sexy in her crisp dress with cutout shoulders. A peek-a-boo bodice is the perfect way to show a hint of skin—even when you've skipped a workout or two.
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Jessica Alba

Jessica Alba in Narciso Rodriguez