Rachel Bilson

By Jemma Tibbals

The weeny starlets of yester year are all growed-up, here we reveal the ones who have undergone the biggest style overhaul...

This diminutive (she\'s a teeny 5\' 1 3/4") OC starlet is a big contender in nearly every best-dressed list you\'ll come across. Regularly appearing on the front row during fashion week, Rachel Bilson recently sat alongside the crème de la crème of fashionable faces at the Chanel S/S08 show, she has undoubtedly left behind the suspect dress sense seen in her OC days.  Back then Rachel might not have taken to Summer Roberts\' love of tiny skirts and crop tops outside of work, but she lacked the grooming skills she\'s now honed to perfection.

Tell us what you think of Rachel\'s style overhaul...

Keira Knightley

The current face of Chanel\'s Coco Mademoiselle perfume (an accolade indeed - if Karl Lagerfeld knows who you are you must be doing something right), cover girl for Vogue\'s October issue and star of hit film Atonement; Keira Knightley is It-ter than It right now.  However, this swan has definitely under gone an ugly duckling transformation since she appeared in Pirates Of The Caribbean back in 2003. Gawky and awkward on the red carpet then (is it bad that I wish someone would show Karl this ensemble on the left?), now she is elegant, polished and rarely seen out of Chanel (Jealous? Much.)

Keira\'s got Karl\'s vote...but do you think of her style? 

Ashley and Mary-Kate Olsen

When you\'ve been in the public eye since you were a year old, it must be pretty hard to run from those embarrassing teenage pictures you hoped would never be seen.  As is the case with most twins when they are growing up, Mary-Kate and Ashley Olsen were fans of the same outfit/different colour get-up. Now, however, the twins have developed their own individual styles, with Mary Kate being the more gothy counterpart, but it is their combined love and unique eye for fashion that has lead to their latest collaboration, The Row. Taking them even further from their ‘tween\' image, The Row is a bespoke range stocked only in select retailers, which can only boost their already fashionable credentials.

We want to hear what you think of the Olsen\'s fashion choices 

Lindsay Lohan

Since getting her big break in Mean Girls (2004) Lohan has experimented with every hair colour, from auburn to platinum to brunette, and her clothes have undergone as many evolutions. A self-confessed fashion obsessive now, it hasn\'t always been that way... check out dressed-down Lindsay (far left) in a velour tracksuit - yoikes! Step up stylist to the stars, Rachel Zoe who whipped fledgling Lindsay into an LA sophisticate, but unfortunately that meant Lohan\'s clone credentials rose too.  Now Lohan has parted ways with Zoe she has a less contrived try-hard look.

Give us your opinions on Lindsay\'s style transformation...

Christina Aguilera

Christina Aguilera has been the biggest chameleon of the bunch. We\'ve seen it all (quite literally when she went through her bum skimming, chap-wearing phase), from daunting make-up, scraggily hair extensions and dubious outfit choices, but thankfully this mini diva has come out the other side. Christina has transformed from slutty to sexy, now favouring the coiffed sultry look that raises many a comparison to Marilyn Monroe. We agree Christina, you are Beautiful.

Christina has had many guises, tell us about your best/worst Aguilera outfit choices... 

Christina Ricci

Christina Ricci has been subject to the scrutiny that inevitably arises when you\'ve been working in showbiz since an early age.  Roles in films like The Addams Family (1991) and Sleepy Hollow (1999) matched Christina\'s vampy and gothic style which went hand in hand with the perception that she was one of young Hollywood\'s more precocious, outspoken actors. Christina, still not afraid to stand out from the rest of the LA pack, now dresses more kooky than spooky, embracing alternative labels and never looking out of place at even the most glamorous of events.

Goth or glam?  Which Ricci look do you prefer? 

Kate Bosworth

First seen as a surfer chick in 2002 film Blue Crush, which was set in Hawaii (let\'s hope that\'s the reason behind the outfit on the far left), Kate Bosworth has left behind the teen roles and, thankfully, the questionable outfits. Now Kate is unquestionably cool; a big supporter of fashion week, Kate has been spotted on all the in-demand front rows including Rag And Bone, Thakoon and Luella, and she is also the face of Revlon. Seen here on the right wearing Preen, there is little doubt that Kate has transformed into a fashion savvy starlet.

There\'s no doubt she\'s a fashion pin-up now...but what about then.  Give us your comments

Nicole Richie

Not that we needed proof, but there\'s little doubt from these pictures that Nicole Richie has undergone a serious style overhaul.  Richie was known merely as ‘Paris Hilton\'s best friend\' back in her days of wearing leg warmers, teeny-tiny skirts and three-tone hair extensions, but look at her now. Nicole has dressing chicly down to a fine art and now even in pregnancy she has kept herself preened to perfection. 

The and now; Nicole\'s undergone quite the make-over but what do you think of her style currently?