Moore stars as Linda in the new TV adaptation of Aldous Huxley's Brave New World, which just premiered on NBC's new streaming service, Peacock.
Even her daughter, Tallulah Willis, couldn't help but comment on the new look. She commented on the photo, "Tbh you blonde is a whole new truth I didn’t know I needed."
This isn't the first time the actress has undergone a dramatic transformation for a role, either. Moore shaved her head on the set of Ridley Scott's 1997 film G.I. Jane.
"I had more people want to touch me," she once said. "The funniest response came from my children, who would say to friends, 'Hey, do you want to come look at my mum's head?' as if I were a show-and-tell item."
Two decades later, Tallulah followed her mother's suit. "I actually watched G.I. Jane two days before I shaved by mean," she told Nylon. "I don't think I was 100 percent inspired by it, but I think it may have manifested the idea in my mind."