By Bronwyn Barnes
Updated March 09, 2013 at 04:00 PM EST
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Credit: Jason Merritt/Getty Images

It’s the weekend, which means it’s time for YOU to grade the looks!

This week, Nicole Richie layered on the labels to hype season two of Fashion Star, January Jones showed off her feminine wiles at Paris Fashion Week, Mariah Carey slipped into a little black dress to party with the American Idol finalists, Jude Law tried to dress down his suit at the French premiere of Side Effects, and more stars stepped out in designer duds.

Click on and get grading! SEE THE PHOTOS

Credit: Lewis Jacobs/NBC

In New York City, Nicole Richie had a whole lot of look going on — a Helmut Lang Mongolian fur jacket, Stella McCartney fringe blouse, J Brand jeans, House of Harlow sunglasses, snakeskin pumps and a Fendi tote, to be exact — when she paid a visit to the Today show to promote season two of Fashion Star.

Credit: Lewis Jacobs/NBC

January Jones looked like she’d just stepped off the set of Mad Men when she arrived for Miu Miu’s Fall 2013 runway show at Paris Fashion Week.

NEXT: Mariah Carey

Credit: Lewis Jacobs/NBC

In L.A., Mariah Carey looked a little uncomfortable in her lace LBD as she posed for photographers at the American Idol season 12 finalists party.

NEXT: Selena Gomez

Credit: Lewis Jacobs/NBC

Spring Breakers star Selena Gomez wore a floor-length gown with strategically places cut-outs to the 21st annual Alliance for Children’s Rights dinner in L.A.

NEXT: Jude Law

Credit: Lewis Jacobs/NBC

At the French premiere of Side Effects, Jude Law opted to wear a v-neck t-shirt (instead of the usual white button-down) with his double-breasted Prada suit.

NEXT: Kate Moss

Credit: Lewis Jacobs/NBC

Only Kate Moss… The supermodel wore a tres risqué Saint Laurent diamante bodysuit and men’s blazer to the CR Fashion Book party at Paris Fashion Week.

Credit: Lewis Jacobs/NBC

At The Academy of Television Arts & Sciences’ “An Evening With Revenge” event, Ashley Madekwe stood out from the crowd in her bright pink Versace frock, which she paired with heels from Saint Laurent.

NEXT: Bella Thorne

Credit: Lewis Jacobs/NBC

Bella Thorne had a little spring in her skirt at the JC Penney/Joe Fresh pop-up event in Los Angeles.

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