Who: Olivia Palermo, reality TV star turned style setter and model — she's the face of Oscar de la Renta's new Outnet collection. Why we love her: Olivia's won us over with her flawless styling. What can we say, she knows what works, but isn't afraid to experiment either, boldly mixing prints, accessories, and labels. She'll accessorise a Valentino dress with Topshop heels, or Giambattista Valli shift with a Zara bag; when it comes to high-low mix-ups, Olivia is the mix master. Key pieces: Olivia's built a wardrobe rife with classics, like a great button-down, perfect-fit skinnies, and tailored blazers and trousers, but her outfit flair comes from a cool blend of the trends, like printed pants, lace-up booties, and peplum. Look to Olivia's favourite labels like Tibi, Giambattista, Valentino, and high-street finds from Topshop and Zara to channel her feminine, eclectic feel.