Work it, girls!

This week Keira Knightley stole the spotlight at the photo call for "Begin Again" in London. The brunette beauty looked picture perfect in her nude Simone Rocha Fall 2014 sheer dress. Keira completed her look with loose waves, a smokey eye and gold Prada Mary-Jane metallic pumps.

Taylor Swift made our list again this week, as she casually strolled around New York. The country cutie looked fit for a catwalk in her seafoam green pleated mini skirt, yellow blouse and salmon sandals. Swifty finished her look with her favorite cat-eye sunglasses and a taupe bag.

Cara Delevingne looked timeless at The Serpentine Gallery Summer Party in London this week. The model looked super chic in her black Mulberry Spring 2014 sleeveless column dress. She even accessorized her elegant look with her very own Mulberry "Cara Delevingne" bag.

But these ladies weren't the only stunners of the week -- click "Launch Gallery" above to see who else made our best dressed list!

Which celeb had your favorite look? Tell toofab in the comment section below!

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