The mum-of-one - who shot to fame after appearing on Celebrity Big Brother - is famous for her sandy blonde curls, so we were surprised by her recent barnet switch-up.
Her new mane came courtesy of Shane O'Sullivan, who is the director of Easilocks human hair extensions.
And while we're loving her new chocolate bonce, we can't quite believe how different Chantelle looks in her 'before' picture.
With shoulder-length tresses and a sweeping side fringe, the model looks almost unrecognisable.
But a few hours and tons of extensions later, her glorious tumbling locks were back with a bang!
The 29-year-old was clearly happy with her new 'do, tweeting: "Thank you @Easilocks for my new brunette hair and extensions!! Shane o'sullivan is the best!"
She later added: "Thanks for all the lovely comments about my new @Easilocks brunette hair x"
We think she looks fab too - let's hope the brunette 'do is here to stay!
What do you think of Chantelle's new hair? Let us know by commenting below as the best comment across the site each week wins £50!