This Week's Best Dressed: Ashley Simpson, Gwyneth Paltrow, Camilla Alves and Rose Byrne

This week’s best dressed from top left to bottom left (clockwise): Ashlee Simpson in black and Alexander McQueen, Gwyneth Paltrow in Stella McCartney, Olivia Palmero in contrast trousers and leather blazer, Camila Alves in stripes and leather, Rose Byrne lace and metallic,  Poppy Delevingne In Mary Katrantzou for Topshop, Shailene Woodley in Jason Wu, Rihanna in custom Giorgio Armani.

Credits: Ashlee Simpson (Rex), Gwyneth Paltrow (Getty), Olivia Palmero (Neilson Barnard/WireImage), Camila Alves ( Bauer Griffin), Rose Byrne (Billy Farrell/BFAnyc/Sipa), Poppy Delevingne (Style.com / Getty),  Shailene Woodley (Dara Kushner/INFphoto.com), Rihanna (Style.com /Getty)