But on Monday night, the 42-year-old Horrible Bosses star showed off an easy, no-cut way to switch up her famous locks for Glamour's Women of the Year Awards. See more pics of Jen at the Glamour Women of the Year Awards from PopSugar.
Aniston used two plain bobby pins to secure her loose curls in a side-part, which gave her a youthful, flirty look. It also appears that the long bob she was sporting this summer has grown out quite fast, as her hair is back to its usual long length.
Could the uber-popular topknot trend be next for the sexy star?