From the glam-packed red carpet of the Met Ball in NYC to the sizzling hot streets of Los Angeles, stars were out in full force dressed to rock and shock in the best, worst & wackiest fashions, and RadarOnline.com has all the wardrobe winners and sinners in our weekly photo feature.

PHOTOS: The Best, Worst & Wackiest Fashions Of The Week

The competition was fierce for the top style slot, but the wardrobe winner of the week was the divine Diane Kruger. The beyond beautiful blonde hit the Met Gala on Monday night, wearing a slitty and sexy Jason Wu number with black sandals, a Jimmy Choo clutch and a coat of intense red lipstick. The nude-embellished sleeved top and black skirt combo made the most of her luscious legs, and scored her haute honors!

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Other wardrobe winners at the Costume Institute's annual gala included Kristen Stewart in Proenza Schouler, Sarah Jessica Parker in Alexander McQueen and Ashley Greene in Donna Karan.

PHOTOS: The Best, Worst & Wackiest Fashions At The Met Ball

Ashley Olsen rained on the fashion parade in NYC, stepping out in a not-so-stylish slicker, while Amanda Michalka experienced a bra-baringblunder at the Nylon party in Los Angeles.

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And as for wacky, Wiz Khalifa was probably the only person proud of his rumored bootylicious fiancé's choice of color. Amber Rose shopped 'til she dropped in Los Angeles, wearing bright yellow construction couture!

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Who else rocked and shocked on the fashion front this week? Click here to find out.

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From the glam-packed soirees of Mercedes Benz Fashion Week to all the pre-Grammy excitement in Los Angeles, stars got dressed up in the best and worst fashions of Wednesday and RadarOnline.com has all the photos in our daily feature.

PHOTOS: The Best And Worst Dressed Stars Of The Day

Blake Lively is filling Sarah Jessica Parker’s designer heels to perfect. The Gossip Girl hit the amfAR New York Gala dressed to thrill in a stunning Alexander McQueen strapless gown, which featured an attention-grabbing pattern. Finishing the luscious look off with Lorraine Schwartz bling, Blake scored herself the Best Look of the Day by a landslide.

Hollywood celebs bounced out of vacation mode and headed back to work this week, stepping out in fab and faux pas fashions and RadarOnline.com has all the photos in our weekly feature. To see stars in the best, worst & wackiest fashions, click the next sentence.

Click Here To See Stars In The Best, Worst & Wackiest Fashions Of The Week

After reports that she had split ways with her Thanksgiving-to-Christmas beau Jake Gyllenhaal, Taylor Swift rocked the red carpet of the People's Choice Awards in Los Angeles on Wednesday night, in fabulously fem fashion. The country cutie looked pretty in pink in a J. Mendel number from the Spring 2011 collection, which she paired with matching Prada heels and Neil Lane jewels. If she keeps looking this gorgeous, Tay Tay will surely find herself a new plus-one in time for the Grammy Awards in February.  See Taylor here.

PHOTOS: The Best, Worst & Wackiest Fashions Of The 2011 People's Choice Awards

Drew Barrymore missed the a la mode mark at the 50th Anniversary bash for CoverGirl. The brand's beautiful spokesperson looked great from the waist up in her marigold Jill Sander strapless gown from the Spring 2011 collection, but the cinched detail under her knees was unforgivable. See Drew's miss here.

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Little Red Riding Dame? The fabulous Helen Mirren had a not so fabulous fashion faux pas in Los Angeles, pulling a Britney Spears and baring her belly in a crop top. The 65-year-old star paired a loudly patterned skirt with red tights, shoes and sweatshirt, landing herself the worst look of the week.  See Helen here.

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Nicole Richie was dressed to thrill for a day at the salon in West Hollywood, rocking cutoff denim shorts with black tights, a white top, black jacket, a patterned scarf and a bright red Chanel flap bag, while Angel-turned-Transformer babe Rosie Huntington-Whiteley aced the less-is-more look, making a splash in St. Barts wearing a skimpy bikini.

See Nicole here and Rosie here.

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Britney Spears and Lisa Rinna sported some not-so-hot headwear, while running errands in Los Angeles, while Snooki embarrassed the Burberry brand, wearing their iconic plaid scarf, while promoting her latest book on Extra.

See Britney's blunder here, Lisa's here and Snooki's here.

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To see more rocking and shocking fashion in RadarOnline.com's weekly photo feature, click here.

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