The French designer was synonymous with striped sweaters and Left Bank insouciance.
The music star had launched the collection last February during New York Fashion Week.
Cuts may be coming to Condé Nast.
The brand said Thursday it will continue to open as many as 10 stores in Mainland China each year, in line with its original strategy.
She’ll work with creative director Stephen Gan, her collaborator on Fashion Book, on several stories a year.
Blake Lively, Elle Fanning, January Jones and Diane Kruger attended the event.
The brand that launched online first is building its retail business.