From Page 3 girl to grown-up glamour: How Kelly Brook's astonishing wardrobe transformation has earned her an unlikely gig as a fashion editor

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She made her debut as fashion editor of chat show Lorraine this morning.

But Kelly Brook's latest gig may come as something of a surprise to those who best remember her spilling out of barely-there dresses on the 1990s party circuit.

When the actress and presenter, who shot to fame hosting the Big Breakfast, started out as a glamour model, her signature headline-grabbing look was big hair, short skirts and ample cleavage.

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My how you've changed! Kelly has gone from showcasing hair-raising ensembles (left, at a film premiere in 2000) to red carpet siren (right, at a recent London awards ceremony)

But these days Miss Brook, 37, who joined Lorraine Kelly as in-house fashion expert on Friday morning, favours tailored dresses with simpler silhouettes and muted colours - and not a sequin in sight.

She will now stand in for professional stylist Mark Heyes and impart her tips for achieving the coveted A-list sparkle on a budget.

Over nearly 20 years in the fashion business, it's fair to say that Kelly has had more than her fair share of sartorial faux pas.

But in recent years Kelly has undergone something of a style transformation as her hemlines have steadily got longer and her necklines higher - a far cry from the starlet who famously flashed her buttocks at a Guy Ritchie film premiere in 2000.

Kelly models Playtex lingerie in London, 1997. Thanks to her 30FF bust - she calls her breasts her 'loyal friends' - Miss Brook has carved out a niche as a poster girl for women with curves

Kelly at a Littlewoods photo call in 1998, left, and at the 1999 BRIT Awards, right. She is now poised to make her debut as fashion editor of a prime time TV show Lorraine

Back in her twenties, when she was gracing the covers of lads' mags like Loaded and FHM, the model's red carpet appearances attracted almost as much attention as her turbulent love life.

But in recent years her wardrobe appears to have taken a decidedly more mature turn, with the star opting for vintage Hollywood glamour over flashing the flesh.

Thanks to her 30FF bust - she has called her breasts her most 'loyal friends' - Miss Brook has carved out a niche as a poster girl for women with curves.

But while her earlier modelling gigs included the Daily Star's Page 3 and Lynx, she now scoops high-profile campaigns for major brands such as Specsavers, Hyundai and Reebok.

The model showcases her famous curves on the top of a double decker bus in 1999, left, and stepping out at an awards do thrown by lads' mag Loaded the same year, right

She began designing and modelling her eponymous lingerie brand for New Look in 2006, and in 2012 she showed her style credentials when she dipped her toe into clothing.

Kelly's latest summer collection for the high street giant featured cinched waists, halterneck bra tops and full skirts which echoed Dior's own New Look shape of the 1950s. 

It served as proof that her style had taken a decidedly classier turn, and over the next few years she silenced her critics with a series of stunning red carpet displays including expensive designer and vintage numbers from labels such as Hervé Léger.

These days Kelly, pictured in vintage Ossie Clark at the 2014 NTAs, favours more demure hemlines and simpler silhouettes, adding a flirtatious edge with a flash of leg or décolletage

Kelly makes waves in a flattering £6,675 Hervé Léger dress at a gala in 2015, left, and opts for a classy black velvet dress with a sweetheart neckline in Paris, October 2016, right

The transformation is complete! Kelly will now appear as guest fashion editor on ITV's Lorraine, stepping in for professional stylist Mark Heyes

Onlookers drew audible gasps when she arrived at the 2014 National Television Awards (NTAs) in a plunging Ossie Clark gown.

And a 2015 appearance in a purple velvet halterneck gown at the Evening Standard Theatre Awards firmly secured her status as a red carpet siren. 

 Naomi Isted is a fashion presenter and celebrity stylist

Fashion presenter and celebrity stylist Naomi Isted told FEMAIL: 'Kelly’s style has evolved dramatically from her glamour model days of hot pants, bra and pants on show and wearing bright pink. 

'She now looks every inch the A-lister, whereas before she was pushing boundaries to get attention. 

'I think her style has matured and its down to a few different factors; obviously when she was younger she was a growing name so would wear for the shock factor to get the attention and press coverage to raise her profile. 

'Since she has spent time in LA and her celebrity circle has inevitable changed, so has her style. She doesn’t need to dress to shock as she is now a household name. So for her stylist they can dress her in a way that suits her age, body shape and what works for her brands.' 

Speaking of her new look, Naomi said: 'I utterly love the classic 1950’s Hollywood starlet look on Kelly, she oozes glamour, sexiness and sophistication when she is styled like that on the red carpet. 

'It is a perfect look that works perfectly with her gorgeous brunette locks and stunning curves. She exudes glamour and sophistication and I think she will shine through in her new role.'