Surprise! The de Blasio family loves dressing up in costumes. Here they are at the Mermaid Parade in Coney Island this year (for the record, Bill de Blasio and his son Dante are not mermaids, but a pirate and Neptune, Roman god of the sea). Not even a water theme could convince Chiara to trade in her signature floral headband.

But aside from the light-hearted fun of that day, New York’s new mayor is serious about his commitment to the city’s fashion industry. To prove it, he’s hosting a formal cocktail at Gracie Mansion for CFDA members during NYFW. Plus, earlier this year he gave a speech at the CFDA Fashion Incubator, where he spoke candidly about his maternal grandmother, who secured passage to the United States by starting an embroidery business. He’s also appointed one of his deputies as a special fashion liaison.

Further, de Blasio’s wife, Chirlane McCray, is expected to hit a small number of spring collections, including Nanette Lepore, who dressed her for her husband’s inauguration.