From the swankiest wedding of the decade to the streets of Los Angeles, Hollywood’s hottest stars were out in full fashion force this week, rocking the best, worst & wackiest threads—and RadarOnline.com has all the photos in our weekly feature.

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

The most talked-about look of the week—and probably our lifetime—shouldn’t be a surprise to anyone. Kate Middleton’s gorgeous wedding gown, which was designed by Alexander McQueen's Sarah Burton, was fashioned for the modern day princess. With it's luxe lace sleeves, subtle sweetheart neckline and long satin skirt, the dress will surely be copied by people all over the world.  The pretty princess paired the stunner with a Cartier tiara borrowed from the Queen and heels designed by the Alexander McQueen team to match her gown.

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Other notable looks included Blake Lively’s Zuhair Murad mermaid a la mode at the Time 100 Gala in NYC, Emma Stone and Freida Pinto looking lovely in Louis Vuitton at their Glamour Mag cover celebration, and Miranda Kerr showing off her post-preggers bod in Roland Mouret at the Tribeca Film Fest.

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The biggest fashion faux pas were courtesy of Jessica Simpson, who couldn’t quite pull off a dramatic Emilio Pucci mini at Us Magazine’s Hot Hollywood party and Lacey Schwimmer, who sported Vanilla Ice’s harem pants from 1995.

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Nicky Minaj and Whoopi Goldberg upped the wacky factor this week--along with all the royal wedding mad hatters!

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For all the best, worst & wackiest looks of the week, click here.

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