Victoria Beckham sizzles in a sexy backless gown from her latest collection 

She has transformed herself from an iconic pop star to an acclaimed fashion designer.

And Victoria Beckham once again proved to be her own best advertisement when she modeled a sizzling dress from her new season on Instagram.

The Spice Girls star, 49, looked incredible in the halter dress with a white backless top and bias black skirt with a small train.

She added a caption, “This is one of my favorite pieces from my new season collection.. Who doesn’t love a backless dress!! I love how sophisticated, sexy and playful it is. Shop the Sleeveless Circle Draped Dress now. Kisses xx VB’.

Victoria showed off every inch of her stunning figure in a duo of shots to showcase the size of the ensemble to perfection.

All white on the evening: Victoria Beckham once again proved to be her own best advertisement as she modeled a sizzling dress from her new season on Instagram

The official description of the dress read: ‘Backless and asymmetrical, the Sleeveless Circle Draped Dress combines sophisticated design with a seductive playfulness. Shop the dress selection at VictoriaBeckham.com and at 36 Dover Street.”

Victoria showed off her lithe body in the ensemble as she raised a storm after discussing wanting to be thin and how she maintains her figure.

In an interview last year, she insisted that wanting to be thin is an “old-fashioned attitude,” having spent much of her childhood maintaining a famously slim physique.

Talking about body confidence, her new VB body range and fitness regimens with Grazia magazine, the fashion designer put forward the idea that modern women want to “look healthy and curvy” – making the slimmer frame a thing of the past.

Stunner: The Spice Girls star, 49, looked fabulous in the halter neck dress with a white backless top and bias black skirt with a small train

She said, “It’s an old-fashioned attitude, wanting to be really thin. I think women want to look healthy and round these days. They want to have breasts – and an ass. The curvier you are, the better my VB Body dresses look…

‘Every woman wants a nice, round, curvy butt, right? For that you need a really tight knit that pinches you at the waist and holds you in all the right places.”

Speaking about body shapes in the US, she continued, “There are a lot of really shapely women in Miami, and they really own it, you know? They walk along the beach in Miami with not much clothes on, and they look fantastic.

“They show off their bodies so confidently. I found both their attitude and style really liberating. And as a mom, I loved the fact that Harper was around women who really celebrated their curves and loved the way they looked.”

A vision: In an interview last year, she insisted that wanting to be thin is an “old-fashioned attitude,” having spent much of her childhood maintaining a famously slim physique