Eccentric singer Miley Cyrus has surprised fans by moving back in with her former fiancee, Australian actor Liam Hemsworth.

Despite being spotted hanging out in Byron Bay together with Hemsworth’s family over the holidays, the pair have been separated since 2013.

But according to entertainment website TMZ, which photographed Cyrus and a number of friends unpacking a ‘U-Haul’ moving truck at Hemsworth’s house on the weekend, their broken engagement may be back on.

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Cyrus has even been spotted wearing a diamond ring on her engagement finger again, which is thought to be the one Hemsworth proposed with way back in 2012.

Cyrus unloads a moving truck at Hemsworth’s home in Malibu. Photo: TMZ

She posted not one but two selfies of herself wearing the ring in plain view, however did not comment on the possible re-engagement.

After falling in love on the set of their film The Last Song in 2009, Hemsworth and Cyrus became engaged in Australia after three years together.

Cyrus was just 19, while Hemsworth was 22.

After the pair announced they had split in 2013, Cyrus went through a dramatic image transformation, hiring Britney Spears’ former manager and generating controversy with her increasingly wacky outfits.

A video clip for her dramatic ballad ‘Wrecking Ball’ featured Cyrus naked, swinging on a wrecking ball and crying.

Meanwhile, Hemsworth continued his rise through the Hollywood ranks with roles in The Hunger Games sequels.

In an October interview with Men’s Fitness, Hemsworth talked about his split with Cyrus.

“You fall in love with who you fall in love with; you can never choose. I guess some people just come with a little more baggage. [Laughs.]

“I mean, look—we were together five years, so I don’t think those feelings will ever change. And that’s good because that proves to me that it was real.

“It wasn’t just a fling. It really was an important part of my life and always will be.”