SEAT YOURSELF: Karl Lagerfeld was the man of the hour Friday night at Les Arts Decoratifs, where he was feted as “creator” of the year by the home decoration fair Maison Objet. Marianne Faithfull said she and Lagerfeld share the same taste in furniture — the antique kind. “I collect 18th-century Irish furniture,” she said. The singer’s next stop is the Chanel studio to get clothes for her upcoming tour in the U.S. Her ideal outfit: “Jeans with a beautiful Chanel shirt and jacket.” As Lagerfeld embraced the likes of Betty Catroux, Vahina Giocante and Chantal Thomass, Nino Cerruti talked about his move from fashion to furniture having recently bought an Italian design company. “One thing is on the body, the other thing is around the body,” he shrugged, wearing one of his signature peak-lapel, single-breasted jackets. Lagerfeld, meanwhile, said he’s headed to Brussels next week to testify before Neelie Kroes, the European competition commissioner who has already met with the likes of Bernard Arnault and Mick Jagger on creating a fair and free business environment on the Continent.