The week's best celebrity style: Olivia Wilde, Blake Lively, Elizabeth Olsen and more

Anja Rubik took to the Tribeca Film Festival in a multicoloured Chanel design and lace-up sandals.
Photo: © Getty Images

Dakota Fanning attended the world premiere of 'Franny' in an ivory Zac Posen frock and '70s-inspired gold platforms.
Photo: © Getty Images

Emma Watson opted for the unconventional at the Time 100 Gala in a look by Christian Dior and lace up pumps.
Photo: © Getty Images

Blake Lively turned heads at an after-party for 'The Age of Adaline' in a daring Monique Lhuillier ensemble that paired a starry, sheer bodysuit and black coat dress.
Photo: © Getty Images

Elizabeth Olsen stepped out at the London premiere of 'The Avengers: Age of Ultron’ in a sequin-collared cape dress by Saint Laurent and grommet-accented sandals.
Photo: © Getty Images

Isabel Lucas looked elegant as ever in a royal-blue Christian Dior design at the L.A. premiere of 'The Water Diviner.'
Photo: © Getty Images

Olivia Wilde let her inner hippie shine in a diagonally striped dress by Tory Burch and olive crocodile-print boots.
Photo: © Getty Images

Olivia Palermo took flower power to a new level in a 3D-printed Marchesa dress and her own Olivia Palermo x Aquazzara heels while out in NYC.
Photo: © Getty Images