Sia

The stylist to Billie Eilish, Diplo, Rosalía, Katy Perry and Christina Aguilera — and many more, if you can believe it — shares her clients' secret sartorial sauce.

And Macy's is set to close 40 stores.

Sia, Stanley Tucci, Alice Cooper, Haley Joel Osment and Luke Wilson were among those who came out Friday night in support of men's cancer awareness.

And Irina Shayk is Bradley Cooper's next top model.

And Dior has changed the venue (and country) of its cruise show.

Oh, and she wore custom Armani on the red carpet. NBD.