Sienna Miller Rocks An 'Ugly' Dress On Our Best-Dressed List

Teach us your ways.

There are a few celebrities who we can always count on to step outside the box and really change it up. And this week, Sienna Miller did just that.

The British-American actress wore a dress that, off-the-rack, might be considered ugly, however she owned it and made it one of our favorite looks of the year.

Other A-listers wowed in more traditional, yet equally stunning looks. Emily Ratajkowski was gorgeous in an off-the-shoulder number, Kate Bosworth gave us a lesson in jumpsuits and Zoë Kravitz taught us about balance.

Check out the best-dressed stars of the week and let us know if you agree with our picks:

Dare to be different.
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Sienna Miller in Christopher Kane: The actress has really positioned herself as a fashion girl over the past several months, and this look is only making her case. The color, the cut-out and the embellishments don't look overdone because they are so strategic and it helps that Miller is carrying the off-beat look with confidence.
Hold on to your off-the-shoulder dresses.
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Emily Ratajkowski in Bec & Bridge: In case you were wondering, the off-the-shoulder trend is here to stay. We especially love Ratajkowski's version, in this rich navy hue with a bias cut.
It's all in the small details.
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Kate Bosworth in Monse: This top and pants combo, which looks a lot like a jumpsuit, has great small details. The stripes and buttons on the top add a little personality and the small slits, which expose Bosworth's shoes, elongate her legs.
Have fun with your neckline.
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Kelly Ripa in Roland Mouret: What we have here is excellent fit, interesting details (like the sheer paneling and the criss-cross neckline) and great styling.
Balance a low-cut dress with a roomier fit.
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Zoë Kravitz: Kravitz's look is so sleek. The plunging neckline is quite revealing, but since the rest of her dress is loose, it doesn't read too sexy. We also love how she pulled her hair off her shoulders, so you can really see the neckline.

Before You Go

Fit is key.

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