January Jones does not seem like this anymore!

January Jones has debuted a new look.

The American actress, 46, known for her role as Betty Draper in the TV show Mad Men, took to Instagram on Thursday to share a picture of herself looking quite different.

The Anger Management star, who usually rocks a short blonde platinum bob, tied her locks back in a ponytail and they appeared darker in the light. 

Wearing a read, button-up sweater, the Hollywood star smiled for the camera while also wearing a pair of grey hot pants.

On her feet she wore a pair of Flashdance-inspired leg warmers.

Rounding out her Eighties-inspired fitness look, she accessorised with statement sunglasses.

Earlier this year, the blonde bombshell showed off her youthful physique as she posed for some backyard bikini photos.

She posted a series of pictures to Instagram in July, giving fans a look into her summer.

January Jones has debuted a new look. The American actress, 46, known for her role as Betty Draper in the TV show Mad Men, took to Instagram on Thursday to share a picture of herself looking quite different 

The Anger Management star, who usually rocks a short blonde platinum bob, tied her locks back in a ponytail and they appeared darker in the light 

January wore a red and white striped two-piece bathing suit with a matching baseball cap and gold jewellery.

She kept her bright blonde hair pulled back and donned black shades as she smiled at the camera.

January captioned the carousel with red and white hearts. 

January is known for her role as Betty Draper in the TV show Mad Men. Pictured alongside co-star Jon Hamm

Fans flocked to the comments section to compliment the star, with one user writing, ‘January Jones bikini season is my favourite season of the year.’ 

Meanwhile, another chimed in, ‘January in the middle of July,’ with a heart eyes emoji.

Back in April, January showed off her toned abs in a flirty black floral bikini with a straw hat. 

The X-Men actress stuck out her tongue in one shot and posed from behind, looking over her shoulder in another.

January cheekily wrote, ‘It may be time to get my swimwear out of the attic, but this will do for now.’