White was the color of choice for stars on this week's best-dressed list . Jessica Alba looked pretty in a lace dress, while Camilla Alves sparkled in a long, white gown.

Though many celebrities wowed us in the past couple of days, the gold star for style belongs to Rihanna who proved that she has the best fashion sense in the biz. Her striped look was the perfect mix of cool and casual.

Check out our picks for best-dressed and let us know what you think.

Jessica Alba in Ralph Lauren

It's so nice to see a pretty white lace dress in the dead of winter.

Rihanna in Altuzarra

So many elements came together to make this a perfect outfit. The two-tone herringbone stripes in Riri's loose fitting top are echoed in her midi length skirt. She is also showing just the right amount of skin with the high-slit and low-cut blouse, and her strappy shoes play nicely off the ties in her skirt. And don't even get us started on those beachy waves.

Camilla Alves

This sparkly white strapless gown looks phenomenal against Alves' olive skin and ombre hair.
Gwyneth Paltrow in David Koma

Gwyneth would rock a neoprene cut-out dress. The interesting color and shape are perfect for the fashionable actress, and we love that she chose open-toe heels to elongate her legs.

Chrissy Teigen in Adeam

This ensemble is the perfect mix of sexy and sophisticated. The white blazer and pencil skirt make this a polished look, but the crop top, high-slit and tousled locks keep it young and fun.

Sandra Bullock in Roland Mouret

The "Gravity" actress found the perfect silhouette for her body. The simple lines on this black dress accentuate her a long and lean figure, and her dark red lipstick really pops against her fair complexion.

Sarah Hyland

This is the Sarah Hyland we want to see more of! This color-blocking look is sleek and age-appropriate, and the jumpsuit is such a refreshing change on the red carpet.

Cate Blanchett in Givenchy

Blanchett has been on a sartorial roll lately. This dress is exactly what we have come to know and love about her style: It's edgy yet incredibly elegant. The plunging neckline is balanced out nicely by the long hemline and loose fit of the gown.

Julianne Moore in Alexander McQueen

While Moore did make the worst-dressed list this week, she clearly found her footing again. Her black lace top and matching skirt are so pretty against her red hair, and the scalloped edges add a nice feminine touch.

More celebs who made the best-dressed list:

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