Of course, no one was going to show up to Studio 54 not looking their best.

However, the style of the hat came to be in somewhat of a roundabout way.

“Funny thing about that pillbox hat,” Halston would later recall.

Halston, 1979

“It was made too small for her … but Mrs. Kennedy wore it anyway.

“He’d say, ‘All right, I got it.’

He put [a design] on you.

Halston at Studio 54 with Cornelia Guest and Andy Warhol

And it danced with you.

His clothes danced with you.

We were joined at the hip from then on.”