Jennifer Aniston has been a style icon for decades, and so have her characters, from Rachel Green to Alex Levy ...

"Hailee has always been a long-haired girl and this was a really big chop and change," hairstylist Mara Roszak told 'Vogue' ...

It comes after Katy, 40, joined Gayle King and Lauren Sanchez, as well as NASA rocket scientist Aisha Bowe, film producer ...