Margot Robbie Is Now A Brunette

01/28/2014 09:00 am ET
Matt Sayles/Invision/AP

Bye bye, blondie!

Margot Robbie, who has garnered a lot of attention for her role in the Oscar-nominated flick "The Wolf of Wall Street," debuted a new look on her WhoSay page Monday (Jan. 27). The 23-year-old actress is now a brunette, ditching her light blond locks.

"First day on set for Z! She ain't a Duchess no more," Robbie wrote, posting the below photo of the darker 'do.

Robbie revealed she had changed up her hair color on Twitter Thursday (Jan. 23), writing:

She will star in "Z for Zachariah" alongside Chris Pine and "12 Years a Slave" actor Chiwetel Ejiofor.

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