Jessica Simpson flaunts 100lbs weight loss as she slips into 14-year-old jeans

Jessica Simpson has left fans awestruck after showing off the full extent of her recent weight loss.

The singer and actress took to Instagram to say goodbye to her 30s in epic style.

Showing off her slender frame, Jess, who turned 40 on Friday, posed for a sultry bedroom mirror snap.

Looking trim, the blonde babe slipped into a pair of ripped blue True Religion jeans that she bought 14 years ago.

Despite being over a decade old, the trousers now fit the mum-of-three perfectly.

In total, Jess is reported to have shed a whopping 100lbs, or just over 7 stone.

Jessica Simpson has shown off her 100lb weight loss with this snap (Image: INSTAGRAM)

Opening up about her transformation, Jessica wrote: “I figured that since I’m in the final hours of my 30s I’d give them another try, and hello 40, so nice to meet you.”

In September last year, Jess told fans how she had lost 100lbs in just half a year.

Alongside a snap of her in a form-teasing black dress, Jess wrote: “Six months. 100lbs down (Yes, I tipped the scales at 240).”

Jess previously admitted to taking diet pills at the height of her career.

Jessica admitted she had weighed 240lbs (Image: GC Images)

Writing in her memoir Open Book, the starlet said: “On my 17th birthday, I flew to New York for meetings with record labels.

“I sang Amazing Grace for Tommy Mottola at Columbia and he wanted to sign me. And then he said, ‘You gotta lose 15 pounds.’

“That’s when the crop-tops came in and the dancing and choreography, and that was all confusing for me.

“I immediately went on an extremely strict diet and started taking diet pills which I would do for the next 20 years.”

Jessica Simpson says she took diet pills at the hight of her fame (Image: Reuters)

She continued: “[That] created a gold standard Jessica, the ‘before’ for every ‘is she fat or is she thin’ story for the rest of my career.

“It’s heartbreaking and I mean, I punished myself for it.

“I heard it and I couldn’t not hear it in the back of my mind every time I was on stage, every time I walked out the door.”

Source: Celebrities - dailystar.co.uk

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