Big Brother Katie Williams has dramatic transformation as shaves off all of her hair:

Former Big Brother Australia star Katie Williams has undergone a major transformation.

The 29-year-old influencer radically changed her appearance after she decided to shave off all her hair.

Katie took to Instagram this week and posted a video of the entire process.

While the former reality star said it’s something she’s wanted to do “for a long time,” she was very emotional when her hairdresser took the razor to her shoulder-length blonde locks.

At the beginning of the video, Katie had tears in her eyes as she pondered whether she was making the right decision.

“I’m not scared yet,” you can hear them say in the clip, but then she seems to get cold feet, because she says, “Actually guys, I don’t want to shave my head anymore, let’s leave it that way.”

However, she still gets all her hair buzzed off and once it’s done she seems really happy, saying it felt “very liberating.”

Since the roots of her hair were brown, the last part of the process was to dye her shaved hair blonde.

After seeing her complete transformation, Katie said she felt “like Justin Bieber.”

The former reality star captioned the video, “Shaving my head. I wanted to do this for a long time, but I never had the courage…. Today I did.

“I was afraid I wouldn’t feel beautiful or feminine. I am proud to say that this fear no longer holds me back.

‘If I had to describe this feeling in 3 words, it would be… liberating, cleansing and empowering.’

Friends and followers of the blonde beauty jumped to the comment section to compliment her new look.

Influencer Laura Henshaw commented, “GORGE.”

While another person commented, “This made me super emotional to watch AMAZING.”

And a third wrote: “Such a hottie!!!”