The French actress, singer and model, who is married to Mark Ronson, says, When the sun is out I finally dress like a woman.
Her summer choices? I wear a lot of flowery dresses, says Josephine. Its quite English, actually. English girls are more eccentric, which I like.
Get her style with Ikat-print top-and-trouser duos, toughened up with denim with a biker jacket and the season's must-have white lace dress.
As for Josephines star purchase for summer, its another thoroughly English item H&Ms straw boater hat.
Its really pretty, she says.