These Best-Dressed Stars Seriously Shone This Week (PHOTOS)

This week's best-dressed list was filled with stars in perfectly fitted minimalist looks. Allison Williams stood out in a simple black halter dress, while Carey Mulligan proved that you can look fabulous in yellow.
Meanwhile, Sandra Bullock continued to hit it out of the park in an incredibly sexy lace dress (this lady is one to watch), and Rooney Mara proved that she is still one of Hollywood's best-dressed celebs.
Check out our picks for best-dressed and let us what you think.
Allison Williams In Dior

Now this is a dress! What makes this gown so special is the silhouette. The halter neckline shows off William's toned arms and creates simple, clean lines which make the actress appear taller than she is.
Carey Mulligan In Dior

Yellow can be a tricky hue to wear given not all shades of the color are very flattering. But Mulligan seems to have nailed it with this strapless dress. The boning towards the top helps to give her a nice hourglass shape, while her pink lipstick and black pumps compliment the delicate look.
Michelle Pfeiffer In Alexander McQueen

Clearly, Pfeiffer knows how to put together a balanced outfit. The strong shoulder pads on her blazer are nicely countered by her fitted white dress shirt and slightly flared pants. (Not to mention the fact that her legs look about 12 feet long).
Freida Pinto In Burberry

Pinto understands how to wear a statement piece. The actress' metallic jacquard pencil skirt is the standout garment in her outfit, so she kept the rest of her look simple, allowing us to be wowed, once again, by her fashion-forward ways.
Rumer Willis

We were happily suprised to see Willis on the best-dressed list this week. We think the young star has finally learned that less is more. This classic black dress, with a slight slit and a deep-V, is showing off all her best assets.
Jennifer Hudson In Donna Karan

Ruching and wrapping are always figure-flattering, so Hudson was smart to pick this style of dress. The singer's strappy sandals further elongate her legs, while her sexy cat-eye makeup amps up the sex appeal. A+, Hudson.
Queen Maxima Of The Netherlands

Who says royalty can't be fashion-forward? We love how Queen Maxima elevated her simple grey dress with bold accessories. Her oversized hat, metallic clutch and gold hoop earrings ensure that she is best-dressed material.
Rooney Mara In Proenza Schouler

The queen of minimalism is finally wearing color (alright, a little bit of color). This dress looks fabulous on Mara because it's refined yet of the moment. The leather top, combined with the tummy cut-out and pleated metallic strips, stay true to the actress' avant-garde style, but are still slightly unexpected.
Li Bingbing In Elie Saab

Now this is show-stopping gown! The Chinese actress may be wearing a revealing dress, but the high neckline, delicate beading and long hemline ensure that it reads very classy.
Sandra Bullock In Stella McCartney

Bullock is on fire in the fashion department lately, and this dress is no exception. The long sleeves on her black lace dress are balanced out nicely by the frock's short hemline, while her deep red lips and tousled locks make the entire look totally effortless.