Karl Lagerfeld, who died in February at age 85 after a battle with pancreatic cancer, wasn't just a famed designer for Chanel, his eponymous label and Fendi – he was also one of the most beloved stars in the fashion firmament. And so when his former fashion houses teamed with theatre and opera director Robert Carsen for Karl For Ever, a special tribute to the couturier, on Thursday evening in Paris, all of Lagerfeld's loved ones turned out to honor him. The guest list included Monaco royals Charlotte Casiraghi, Princess Caroline and Tatiana Casiraghi, as well as Cara Delevingne, Gigi Hadid, Stella McCartney, Claudia Schiffer, Anna Wintour and Valentino.