From the fashion-packed tents of Mercedes-Benz Fashion Week in NYC to the Airport Courthouse in LA, stars were dressed in the best, worst and wackiest fashions this week, and RadarOnline.com has all the photos in our weekly roundup!

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

Blake Lively is filling Sarah Jessica Parker's Manolo Blahniks, Jimmy Choos and Christian Louboutins to perfection.  The Gossip Girl, who is without a doubt NYC's It Girl of the moment, 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 Week.

Click Here To See Blake Lively's Style Score

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Lindsay Lohan may not have gotten permission from her probation officer to jet over to see the Fall 2011 collections, but she was clearly there in spirit.  While most defendants wear conservative suits in the courtroom in hopes of charming the judge, Lindsay showed up to her hearing looking like she just stepped off the catwalk in a skintight Kimberly Ovitz mini dress and black patent stilettos.  Next time, Lindsay should get some pointers from Lil' Kim, because even she managed to dress appropriately for court!

Click Here To See Lindsay Lohan's Courtroom Catastrophe

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And J-WOWW trekked over to NYC from the Jersey Shore to participate in Richie Rich's fashion show, definitely giving people the shock factor they expected from the out-there designer.  The hard-bodied bad girl strut her stuff in a totally see-through mini dress, leaving VERY little to the imagination.

Click Here To See J-WOWW'S Wacky Fashion Week Wardrobe

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Selena Gomez looked pretty in purple, supporting Justin Bieber at his movie premiere by rocking his trademark hue. The divine Disney star showed off her skinny bod in a purple Reem Acra wrap mini paired with sparkly heels, while her beau sported a D&G purple velvet tuxedo-style blazer.

Click Here To See Selena Gomez Get Into The Bieber Fever

And the girls of Just Go With It were dressed to impress at the NYC premiere of their romantic comedy. While Jennifer Aniston and Brooklyn Decker showed off their hot bodies in Dolce & Gabbana, Nicole Kidman got leathered up in L'Wren Scott.

Click Here To See The Just Go With It Girls On The Red Carpet

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Other a la mode mishaps included Solange Knowles channeling vintage Lisa Bonet, Leona Lewis wearing a parade of totally disastrous dresses and Dionne Warwick's nightgown fashion fur pas in NYC.

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

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The red carpet was bustling with star power on Monday, as stars stepped out in the best and worst fashions. RadarOnline.com has all the photos in our daily feature.

PHOTOS: Stars Dressed In The Best And Worst Fashions

Michelle Williams was dressed in sophisticated style at the Academy Awards Nominee Luncheon in Beverly Hills. The Blue Valentine babe paired a snazzy tweed skirt from the Chanel Spring 2010 collection with a keyhole silk blouse and black pumps, resulting in flawless finish.

From the glam red carpet of the Rome Film Festival to the streets of NYC, stars were dressed in the best, worst & wackiest fashions over the weekend -- and we are not just talking Halloween costumes! RadarOnline.com has photos of all the hot and not fashions in our weekly feature.

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

Eva Mendes continued her bombshell style streak, hitting the red carpet premiere of La Dolce Vita at the Rome Film Festival in truly radiant style. The brunette beauty rocked a one-of-a-kind drop-dead red Gucci gown, which clung to her curves in all the right places.