If there's one item I would tell everyone to invest their spare $$ in, it's a well-cut blazer.

They can be worn with jeans or dresses, at work or at play, day or night. So versatile! Buy yours in a good fabric and don't be afraid to part with a few more bucks than you normally would - this piece will last for years in your wardrobe so get the best you can possibly afford.

Then, like Kate Hudson here, you can just add a statement necklace, this season's oversized clutch and off to a Vogue party you trot! (Or the pub, your choice).

There's something to be said for a trench dress. A descendant of it's older relative, the trench coat, it conjures up secret rendevous over dry martinis and dark alleyways with mysterious wafts of smoke curling out of them. It's sophisticated, but also kind of spy-wear, and then very French at the same time. Who doesn't want to be all of those things at once?

Rihanna sexes up hers with red lipstick, of course, and the red strappy shoe (she has these in gold too, I want), which is the way to do it. A trench dress will always look polished, so don't try and make it too edgy - and always a heel, never a flat.

How good does Heidi Klum look here? INSANELY good! This is so how to do thigh high boots. A lighter colour like grey works perfectly in thigh-hugging suede, and really streamlines the whole look. That's the one thing I had trouble with initially, talking thigh-high boots. In black leather, the boot was sometimes clunky, sat out from the leg and didn't give a nice, clean line. They were hard to wear.

But these rock.

Worn with a long sleeved mini like Heidi Klum here, and it's the perfect way to make the whole look subtle but still hot.

She proves she belongs at the Nickelodeon Kids Awards just as much as any Disney star.

Now that I have a daughter (it still weirds me out to say that!) I've started to think more about role models. Who's out there in the fame game that will influence my little girl? For me, growing up, it was Madonna and Janet Jackson. There were probably others but these two are the ones I most remember.

If I was the mum of a teenager, I'd be pretty happy with Selena Gomez being a role model. She's cute, talented, dresses well, is going out with very clever boy and most importantly, she hasn't texted pics of herself naked to anyone (not that we know about).

Take this outfit for example. She does the midriff bra top so well that I'd even think about wearing it! It fits perfectly, doesn't pinch at her, there's not a hint of lycra about it, and it's worn with a tailored a-line skirt that's super high waisted, so there's only an inch of skin showing. That's the way to do it. Selena makes a midriff top look classy, full stop.

Katy Perry, on the other hand, just scrapes the other side of the fence. Her lime green top looks more like a sports bra with that elastic band at the bottom, and paired with an elastic waisted, uneven hemlined skirt, it all together is quite sloppy, and makes it look a little cheap-ish, trailer trash. Fun? Yes. Classy? No.

Which look do you prefer?

Of course, Kate Moss wears her pastels differently to everyone else.

Firstly, they're not skinny jeans.

Is this like, one of the only times she hasn't worn skinny jeans, and it happens to be the pastels trend which is all about jeans? Does she just do something different to whatever anyone else is doing?

Yes.

She makes me lust for a pair of peachy, cropped, tapered pants like I never knew I could. How does she do this?! It's like she wields a mysterious fashion power over the female population.

Secondly, she teams her pastels with black. Sharp black shirt, structured black belt, pointy black heels. No light green or wishy washy lemon knit top for her.

Black and pink ... It's a little Pink Ladies, a modern version, and it looks goooooood.

Elisa Sednaoui wears a rather glam pair of navy pyjamas, dressed up with a navy sequinned blazer. 

Would you?

It's all very tonal and with that tousled hair, comes off as quite a relaxed cool. Plus it works 'cause she's wearing it with confidence - like she means business, in her pyjamas, and she doesn't care what you think about it.

I'm still not sure I'd wear the entire matching set out to an event where others were dressed like Hilary Swank though.

This is more the way I'd do it:

Jade Williams pairs a printed pyjama top with a shorts suit and for me, this is much more wearable. All neutral, the pyjama top works exactly like a shirt, but is cooler, non? Combined with those socks, the lace up booties and the bedhair and she looks like a very stylish, naughty schoolgirl, jigging double maths to go hang out at Harvey Nicks. As you do.

It's just a jumper and jeans, but add a blowdry and a pair of strappy heels and hey presto! You look chic. Eva makes sure her jeans are of-the-season pastels and pairs them with a creamy coloured knit. Sunnies and a great bag finish the look.

Moral of the story?

You can go as basic as you like with your clothes, but pick a few fabulous accessories and make sure your hair's in tip top shape to look truly amazing.

I'm saying a resounding YES. Jeans that flare at the bottom should come to the end of your shoes, at the very least. They should go over a heel, if you're wearing one. It cuts off the leg and makes you look a little clownish if they flare at or above the ankle. Steer clear of this look CCL's!

But then made up for it by wearing ...

This rather fabulous ensemble. It's a tad Mad Men-ish, which clearly really suits her. Everything from the bag to the shoe to the sunnies is perfection.

The bag can work with casual or dressy outfits, as she shows here:

What do you think of January's style?

Here's a little trick I learnt on Sex & the City (well, you can't work on a show like that with a stylist like Patricia Field and not pick up a few fab tricks!). When wearing a white shirt, or a singlet, or even a dress for that matter, pop a black bra underneath. It really shocks people! But it also adds a bit of an edge to your crisp, white look which can, let's face it, be rather virginal. Especially if you're going for the Stepford Wife/ Mad Men trampled wife look, which I clearly am at the Louis Vuitton show here in Paris. Try it. But not any old bra, nor a coloured bra. Black is chic at the same time as being a tiny bit trashy. It's the perfect combo.

Would you dare to bare your bra like SJP?

Yes, it's Julien Macdonald and yes, it's on the statuesque Whitney Port.

But I have never seen a more unflattering dress on someone.

Okay, maybe that's exaggerating, but what's with the flounce and the frill and the lace?

Aha! You know why it doesn't work? That hair! It's as bouncy and golden as the dress itself which you think would be good, but in fact it's the opposite. If you've got lots of detail on your frock, pare back the hair. A straight style, or even better, an updo would have worked wonders on this look. Especially if she wanted to wear red lipstick too. One thing at a time dear Whit, one thing at a time. This is called overloading your basket with too many tricks.