Smashing Fashion And 'Crashing' Schoolgirl Slip-Ups In The Best And Worst

Kristen Stewart may be a tomboy in her down time, but the Twilight star really knows how to glam it up for the red carpet!  The brunette babe hit a New York screening of her upcoming flick Welcome to the Rileys on Monday night, looking absolutely lovely in a lace Valentino mini dress.  The scalloped edged, one-shouldered number showed off K-Stew’s covetable curves, while black satin Brian Atwood platforms elongated her legs.  For a flawless finish, she swept her hair back into a loose updo and added a flash of bright red lipstick.

From White House crasher to catholic schoolgirl?   Michaele Salahi showed up to Kim Kardashian’s NYC press conference to promote the Ultimate Engagement Ring-Search For The World’s Best Couple Contest (hopefully she and her partner in crime won’t be entering!) dressed up like a teenager.  The blonde beauty sported a teeny tiny plaid kilt with a tight red sweater and high, lace-up boots, looking like a sexy catholic schoolgirl---not a Real Housewife!

Christina Ricci, Leelee Sobieski and Petra Nemcova all showed up in striking style to Elton John’s An Enduring Vision Benefit in NYC.  While The Addams Family babe made a splash in a ruffled Alberta Ferretti mini dress, Leelee showed off an unusually sexy side in an Acne sweetheart strapless mini.

Chelsie Hightower may be one of the best Dancers in the world, but the blonde babe needs a little help on the fashion front.  Michael Bolton’s former partner hit the town in Hollywood, dressed in truly awkward and clashing attire!

Freida Pinto continued her London style streak in a gorgeously embellished Alexander McQueen number, while Scarlett Johansson hit the streets of Barcelona in city smart threads.

What Sexy star encountered a fashion flop in NYC?  Find out in RadarOnline.com’s daily featured.