It wasn't just the seasons changing this week.
And Fashion Week also proved to be a popular destination to show off a big change as Courtney Love rocked a chic pixie cut and a Gossip Girl fan-fave stepped out looking unrecognizable with a blonde mullet that would have the entire Upper East Side buzzing. Oh, and did we mention Amelia Hamlin said goodbye to her eyebrows for her runway debut in London?
Plus, a Grey's Anatomy actress unveiled her latest look that may just make its way on-screen.
Check out the most surprising celeb transformations of the week...