When it comes to Hollywood starlet style Kate Bosworth’s got it nailed, hitting the red carpet in stunning floor-sweeping gowns and short and sparkly cocktail dresses as the event requires, usually paired with a Pinterest-perfect updo and often a bold lip.

She’s also spot-on at fashion events, where her look tends towards the sleek and tailored, notably at the Autumn/Winter 2012 Burberry show, where she wore a tweed pencil skirt and grey sweater (with an owl on it!), accessorized with a cute clutch and chunky shoe-boots, making the look very much her own.

But it’s not red carpet Kate or fashion show Kate that I find muse-worthy, which I put down to the fact that I don’t spend very much time on red carpets or at fashion shows myself. No, even though I don’t live in California, it’s laidback LA Kate that gets my fashion pulse beating faster.

Laidback LA Kate is partial to a plaid shirt and denim, pairs miniskirts with sweatshirts and always kills it at Coachella, sporting a covetable array of boho dresses, short shorts, statement t-shirts, military jackets and an armful of bracelets and backstage passes.

TopShop loves laidback LA Kate so much they hired her as design consultant to create a festival-themed collection for Spring 2013. The collection was made up of suitably bohemian pieces such as destroyed denim jeans, floaty skirts and dresses, an embellished waistcoat and a pair of woven tan sandals that I wish I owned. The accompanying dreamy campaign pictures were shot by her then-boyfriend now-husband, director Michael Polish.

The collection was such a success she designed another TopShop line for Autumn/Winter 2013, this time with a tougher, more masculine aesthetic. Think spray-on leather jeans, shiny belts, metallic tops, oversized shirts and an asymmetric silver leather skirt that’s also in the stuff-I-shoulda-bought file. Once again Michael Polish shot the accompanying pictures.

No word as to whether there’s another TopShop collaboration in the pipeline (crossing everything!) but (if there is a next time) I plan to snap up a piece or two and get me some of that laidback LA Kate style. I can’t deal with adding to the pieces-that-got-away list and, even if don’t live in Californian, I can at least dress like I do, right?