It’s only been a day since Paula Abdul’s shock announcement – via Twitter – that she would not be a part of American Idol any longer, but already the show’s producers have been scouting the who’s-who of muso has-beens for a suitable replacement… and found one, they have.

Victoria Beckham, aka Posh Spice, has just signed on to make a “one-off appearance” on the U.S. version of Idol, her publicisty has confirmed.

The former Spice Girl will join fellow judges Simon Cowell, Randy Jackson and Kara DioGuardi on the panel in the latest season of the hit reality show, which will begin shooting in the coming months.

However, while the role as judge on the show would definitely be the platform Beckham was hoping for to shoot her into American stardom, the British National has told the producers she “cannot commit” to anything larger than a guest role due to prior committments to her fashion range.

Beckham is well-renowned in the fashion world after her debut collection of dresses received rave reviews during 2008’s New York Fashion Week.

So if Beckham is only going to be a temporary replacement for Abdul, does this mean the newest season of American Idol will see a myriad guest judges instead of a constant paternal figure, like the former was to the contestants?

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In a recent interview with British tabloid The Sun, former O.C. star Mischa Barton has slammed Victoria “Posh Spice” Beckham’s fashion sense, calling the style queen “not particularly stylish.”

The 22-year-old actress told The Sun: “Posh [Beckham] doesn’t strike me as particularly stylish.

“I don’t think she’s a good example of British style at all.”

Barton then went on to praise her own fashion sense, explaining that her simple, individual choices were what fans love most about her.

“I think the reason people like my style is that I do my own thing,” Barton added.

The Sun, who’ve previously labeled Beckham as a “global fashion icon,” weren’t impressed with Barton at all, and launched their own attack on the American star. The tabloid said that Barton was “usually pictured in disgusting get-ups falling out of clubs and her tops.” Ouch!

To add insult to injury, readers of the publication were asked to take part in a poll to see which was more stylish: Mischa Barton, or Victoria Beckham. So far, Posh is in the lead with 68 % of the vote.

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Borat creator Sasha Baron-Cohen has wreaked havoc at this year’s Milan Fashion Show, gatecrashing the catwalk during designer Agatha Ruiz de la Prada’s show.

The comedian was apparently in character as Bruno – his gay, fashionista alter-ego – when he took to the stage, but was quickly ushered off by security and taken to the local police station, where he was released an hour later.

Sources say designer Ruiz was very upset and close to tears after Cohen’s hijacking, fearing he’d ruined her show. Most people believe the actor did her a favour, though. Her show has received the most publicity out of the entire fashion contingent.

Not bad for a 30-second or so interruption…

Victoria “Posh Spice” Beckham stole the show at the Marc Jacobs Spring 2009 Fashion Show, unveiling her new, Halle Berry-inspired crop.

The former Spice Girl looks amazing with her new ‘do! Kinda makes me want to chop off my locks again…

More shots of Posh with pal J-Lo at the event after the jump.

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Money must be really tight for Lindsay Lohan!

The actress looked like she’d dressed in rags for a recent shopping trip to Samy’s Camera on Fairfax Blvd. Or perhaps she simply raided girlfriend Samantha Ronson’s wardrobe for a change?

And what is that on her jeans… a bleach stain?!?

More of Lindsay’s bizarre fashion sense after the jump.

Oh, and I forgot to mention there’s a bit of side-boob action, too.

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Cate Blanchett might have shone at the Cannes premiere of her new movie Indiana Jones and the Kingdom of the Crystal Skull (mouthful!), but her star wasn’t shining so bright in the fashion stakes at the films’ Aussie debut.

Blanchett, who’s just about my favourite actress on the scene, usually gets it so right whenever she steps out in front of the cameras; however, last night’s bronze puff-ball was a little lack-lustre for me.

While her hair and make-up looked divine (as always), I was a little disappointed to see her fabulous post-baby body hidden beneath an unflattering metallic shirt dress.

At least she turned up to the premiere back home, though!

More pics of Cate in Sydney after the jump.

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