If you suffer with major mane envy, you might want to look away now.
The stunning reality star - who just launched her debut gym wear collection, Jess by HD - is famous for her Little Mermaid-like locks, but like Olivia Walsh and TOWIE's Courtney Green, she fancied herself a bit of a change...
...and we're OB-SESSED with the finished result. Anyone fancy joining us at the salon?
Earlier in the week, Jess paid a visit to hairstyling g-e-n-i-u-s Kiimberley Longstaff, who persuaded her to ditch the fiery red (we know, gasp!) in favour of a whole head of mahogany extensions and she took the star's locks from gorgeous to Instagram-worthy with a handful of caramel-toffee highlights from the mid-lengths right down to the ends.
Balyage, FYI - c'mon beauty lovers - you should know this by now!
Having fallen head-over-heels for her new barnet, Jess posted a series of snaps to the picture sharing app and she has shown no signs of stopping, even if she is currently enjoying a sun-soaked holiday in Greece.
"Look at my lovely new hair by @xfactorhairextensions @xfactorclipinhairextensions!" Jess wrote before revealing that she looked to her own range - Instalocks by Jess - for the extra inches.
"The amazing colour and cut by @fiirecracker [Kiimberley] and extensions fitted by @xfactorhairextensions."
Of course, it wasn't long before Jess' fans and followers flooded the comments section with their thoughts, and by the looks of things, everyone's going to be rocking the exact same 'do come autumn.
"Ohhh hello perfection," wrote one Insta-user, while another said, "This is the colour and cut I want!"
Jess - who recently spoke to Reveal about quitting the new series of Ex On The Beach early in a bid to beat her anxiety struggles - isn't the only celeb to make us all jealous with her new hair, though, as TOWIE's Georgia Kousoulou recently showed off her princess-worthy lengths and Kendall Jenner is rocking a new fringe!
Ex On The Beach continues on Tuesday at 10pm on MTV.