Top 20 best dressed of the week! Starring Olivia Munn, Jessica Chastain and Allison Williams

Hot actress Alicia nails the '70s trend ahead of the fash pack in her Louis Vuitton ensemble

Blimey, Allison's had a good week in style! Here she is rocking feline eyes with her navy embellished Monique Lhuillier princess dress

Looking effortessly stylish in classic black and white paired with sleek locks and a teal belt. We heart you Cara!

Showing us an edgy way to wear a mini, Moretz teams her leather Louis Vuitton number with fierce heels and a Victoriana blouse

The new mum and Into The Woods star looked like a divine goddess in her white and gold David Koma frock paired with simple strappies

You can never go wrong with leopard and red. Bold, brave and totally amazing

Could this be the cutest jumper ever?

We first spied those spiky Louboutins on Rochelle Humes, and we've not stopped thinking about them since. Sophia's fruit salad Lela Rose dress is the perfect accompaniment (not that we ever plan outfits around our shoe choice or anything)

This icy blue jewelled Christian Siriano dress is positively dreamy. Top marks, Hyland!

OK, so we can't afford Rosie's Loubs and her Joseph cut-out jumper. But we can just about manage to fork out for her LK Bennett midi (after payday, obvs)

Not only is this navy lace Monique Lhuillier gown AMAZING, but we're mad for Flick's make-up too

OK, we need to get to the gym RIGHT NOW

Doing simple with a twist in a strapless midi with eyelet details teamed with juicy accents

Having a Marilyn Monroe moment in an Alexander McQueen tiered LWD paired with scrunchy curls

She doesn't always get it right fash-wise, but The Big Bang Theory's Kaley has nailed red carpet style this week with her Kaufman-Franco matchy matchy pastel look

Could Kenny J BE any cooler? We're lusting after those leopard brogues

Super sexy in mono Balmain and wine lips. This shape is super flattering on Katharine

Proving a cosy cable knit and statement tote is all you need to work a classic jeans and heels combo

Wowing in Giambattista Valli double stripes paired with patent courts and hot red beauty

Sod the rain, we want a pair of those satin heels NOW please