Former child star Lindsay Lohan is back with a brand new 'do — and looks nothing like the Lindsay we remember.

The Mean Girls actress recently revealed that she's returning to acting with a role on the British comedy series, Sick Note — and judging by her latest Instagram, she got a fresh haircut for the part! The 30-year-old will play the role of Katerina West, starring alongside Harry Potter alum Rupert Grint. The show tells the story of a man misdiagnosed with a terminal illness, who then decides to keep the fact that he’s actually healthy from his family and friends.

MORE: Lindsay Lohan is Now Speaking With an Accent — and Fans Are Really Confused

This marks Lindsay's first major acting role since 2013, but she's also working on a horror film titled The Shadow Within.

https://www.instagram.com/p/BVO_bIngfeo/

Fans were quick to show their support for Lindsay's return to acting and the change to her appearance. One fan wrote, "Yes Linds!! Love this and can't wait to watch." Another added, "Omg that hair style makes you look like a different person, just beautiful."

LiLo has transformed a lot over the years, both physically and emotionally. The formerly troubled Parent Trap star, who had her share of run-ins with the law, opened up to Vanity Fair about the advice she'd give her younger self.

MORE: Remember Glen Coco From 'Mean Girls'?! See Him and the Rest of the Lesser Known Cast Today!

"My mother taught me to always be humble, and that is something I live by still today, so I would say that," she admitted. "I would also probably say don’t go too fast. Pay attention to the people you surround yourself with and make sure they have honest intentions. Put yourself first, and just breathe. Be happy and always be grateful for the moment you have in front of you. Be here, now."

Click through the gallery below to see how Lindsay's changed since the early days of her career!