The former Lizzie McGuire star switched her trademark blonde locks for a striking aquamarine shade last week and we're still getting used to it!
Hilary was pictured out and about in LA on Sunday, 22 March, showing she's keeping the green for now.
So far she hasn't revealed what inspired the dramatic image makeover but she did tweet at the weekend: "You know, #yolo and all that."
'Yolo' meaning You Only Live Once!
Meanwhile, in other Hilary news, she and estranged husband Mike Comrie celebrated son Luca's third birthday.
Alongside a Flipagram video filled with photos of Luca, she said: "3 years buddy! 3 beautiful years! You make every minute worth while! We cherish all your firsts and all that is to come. ️Happy 3rd birthday my love#timesflying #whatayear."
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