For one of the most recognizable faces in the world, Julia Roberts has never stuck to one look for long. Under the guidance of hairstylist Serge Normant, she’s gone from brunette to strawberry blonde to auburn to honey blonde, and then back again. She’s had bangs that were straight, and bangs that were side-swept.

Julia Roberts has had many different hairstyles and hair colors over the years. While each hue has looked natural to her, you might be surprised to find out the hair color she was actually born with. The actress revealed what her natural hair color was on her very first appearance on Late Night with David Letterman back in 1989. “My hair is naturally blond — kind of a dark blond.”

Letterman replied, asking if her hair was currently auburn. “It’s a red, chestnut thing,” she said — not knowing that the hue would become one of her most well-known hair looks. Ahead, see Roberts with her long and curly hairstyle in the 1990s.