The 31-year-old has shared some throwback video of her rocking mousy brown hair and we can’t believe how different she looks.
Dianne shared a clip of her with some friends in New York, including fellow Strictly star Gorka Marquez, with her brunette locks on full display.
The Aussie dancer, who is also a trained hairdresser, added the caption, “OMG my crew this came up on my timeline, the good old days!!! Miss you all so much.
“My hair and natural tan!!!"
This isn’t the only time Dianne has showed off an altered look as another throwback posted earlier this year shows her looking completely different once again.
Back in July she shared a snap of herself with blonde, tasselled hair and a sweeping side fringe. Is there any look she can’t pull off?
CHECK OUT the official Strictly Come Dancing 2020 line-up in full
2020 Strictly Come Dancing official line-up
Actress Caroline Quentin will take part in the 2020 series. She's most famous for roles in popular shows such as Men Behaving Badly and Jonathan Creek.
Former The Wanted star Max George will be hoping he can follow in the footsteps of his band mate Jay McGuiness, after Jay won the show back in 2015.
Former American footballer Jason Bell will be showing off his moves on the dance floor! He's also the ex-boyfriend of Girls Aloud singer Nadine Coyle.
Good Morning Britain presenter will be mixing early morning and grueling rehearsals as she's signed up for the 2020 series.
Olympic boxing champion Nicola Adams will make history on the show as she's set to be part of the first ever same-sex pairing on Strictly Come Dancing.
Radio and TV presenter Clara Amfo has also been confirmed for the 2020 line-up!
Comedian Bill Bailey revealed he decided to take part in the show for a new 'challenge', admitting his late mum would have loved watching him on the show.
Scottish TV presenter JJ Chalmers has also joined the line-up! The former Royal Marine is best known for being a public speaker and an Invictus Games medallist. JJ suffered some life-changing injuries in a bomb blast in Afghanistan in 2011.
After being forced to quit the show in 2019 due to injury, Made In Chelsea star Jamie Laing is back to show off his moves in 2020!
EastEnders actress Maisie Smith, who plays the role of Tiffany Butcher on the BBC soap, has also been announced in the line-up.
Pop star HRVY, real name Harvey Leigh Cantwell, is the 11th celebrity to join the line-up.
The line-up is completed by former Home Secretary Jacqui Smith.
Dianne was recently eliminated from the current series of Strictly alongside her celebrity dance partner Max George from The Wanted and faced death threats during her time in the competition when she was falsely accused of cheating on her boyfriend Joe Sugg.
Strictly bosses were reportedly forced to ramp up security when so-called fans of the YouTuber, who met Dianne on the 2018 series of the show, claimed to be at the apartment block where she and Max were staying.
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Although there was no truth to rumours that Max and Dianne were having an affair, it’s claimed that The Wanted star’s other half Stacey Giggs laid down the law so that their relationship didn’t fall victim to the Strictly curse.
A Strictly insider revealed, “Max is a terrible flirt and very cheeky. There is definite chemistry between him and Dianne, but she is a total professional.
“Stacey apparently read Max the riot act before he went on the show and has now given him another warning, so he knows he can’t cross the line. Max is just a very lovable guy and women are drawn to him. He’s got that charm.”
But despite Stacey’s concerns, it appears she has nothing to worry about, as the source added to new! magazine, “Doing this show is going to put pressure on any relationship and Stacey is aware of that. Max has assured her he’ll behave himself and that she’s got nothing to worry about and she believes him. He's besotted by her.”