Jessica Simpson Flaunts Insane 100-Pound Weight Loss In Tight Leather Pants

Gettyimages | Raymond Hall

Jessica Simpson's head-turning looks just keep on coming. The 39-year-old singer, actress, and "Open Book" author has mostly been making headlines this year for her raw and honest memoir – Jessica has literally proven an open book by detailing everything from her childhood sexual abuse and resulting alcohol and pills addiction, to her former marriage to Nick Lachey.

The 100 pounds Jessica dropped after welcoming third baby Birdie in March 2019 haven't gone anywhere, though. The star's latest Instagram update showed her whittled-down frame, and it didn't hold back on the style front.

Jessica Simpson/Instagram

Jessica's photo showed her shot indoors and backed by parquet floors and a fancy-looking floral display and curved staircase. The blonde was knocking the camera dead as usual, dressed in a high-end wardrobe that both matched the backdrop and flaunted her weight loss.

Opting for all-black, Jessica was showing off her slim silhouette in a skin-tight pair of Frame leather pants, also rocking an Alexander McQueen shirt jacket with sheer sleeves, plus a glossy black bag from luxury designer Bottega Veneta.

Jessica Simpson/Instagram

Completing the snazzy ensemble was a black pair of court shoes with a high heel, smokey black eye makeup, plus the signature bombshell locks that have formed a part of Jessica's identity for so long. The "Dukes of Hazzard" actress shot the camera a direct gaze as she walked across the room like a boss.

A caption announced another public appearance from the star – she was set to join "Live!" host Ryan Seacrest.

"Radio Ready ? Listen live to my @1027kiisfm interview with @ryanseacrest at 8:05AM PST with the link in my bio ?

Likes came in fast for this update. Over 45,000 were clocked in two hours.

Jessica Simpson/Instagram

Jessica's fans were drooling over her impeccable look.

"Love that blazer!! Where is it from??!" one fan asked.

"I need this jacket? Where can I get?" another asked.

Remarks even came in over the setting, with one fan writing: "Love your style! Would super love a video house tour or some pics of your interior decorating ???"

Meanwhile, 31-year-old country singer Jessie James Decker called Simpson a "smoke show." Celebrity likes also came in from "Mad Men" actress January Jones, TV personality Chelsea Handler, plus Britney Spears' little sister Jamie Lynn.

Gettyimages | RB/Bauer-Griffin

Jessica's weight loss came over a six-month period as she walked up to 10,000 steps per day and kept her eye on her nutrition. Speaking to Hollywood Life, trainer Harley Pasternak dished on what the singer ate as she shed the weight.

“She would eat one whole egg and three egg whites for breakfast, scrambled with a bowl of blackberries. For lunch she would have a salad with grilled chicken and grilled fish with salad and vegetables for dinner. As for snacks, she would have almonds and sometimes green beans with Parmesan cheese on top. She was very disciplined,” he said.

For more from Jessica, check out her Instagram.