>> INSIDER WIRE —Anna Piaggi's silhouette is as synonymous with hats as Isabella Blow's was.  Every time she thinks, "Mamma mia! I have nothing to wear!" Stephen Jones will send her a sketch — if only that was the norm.  But her favorite chapeau, at left, has been around, she admits: "I'm thinking of throwing it a 20th birthday party next year." [NYT T Magazine]