The 31-year-old actress goes for a big change in her look. She emerged early this week with darker locks as she returned to the Grey’s Anatomy set.

She tried staying incognito as she had lunch with her mom Nancy last week at Figaro in Los Feliz. I wonder if she was hiding her newly colored locks under that fedora.

On Monday, the brunette went out and about in LA with her mom and sister. Oh, check out her hot suede boots, too!

She topped my list as one of Hollywood’s best blonde bombshells, but she looks hot as a brunette, too! What do you think of Katherine’s darker locks?

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