The singer has been focused on expanding her Jessica Simpson Collection of fashion and accessories in recent years, with the brand developing into a billion-dollar retail empire.
While Jessica has to keep at the forefront of trends when designing for her company, she remains adamant that classic pieces never go out of style.
"My preferences have always remained the same: classic, all-American and effortless," she told Footwear News. "I still wear some of the same cowboy boots and flannel denim shirts that I have worn since I was a teenager. I believe great pieces stand the test of time and get better with age."
Jessica went on to explain that she looks to offer women a variety of clothes and accessories that make them feel "uniquely beautiful". In addition to her current ranges, she is also looking to delve into the beauty market further.
"We're getting ready to launch color cosmetics and a new fragrance, which is super-exciting because I love make-up," the 38-year-old divulged.
During the chat, Jessica also shared that she is again wearing the maternity outfits she designed for her brand during her pregnancies with her daughter Maxwell, six, and son Ace, five.
Last month, the blonde beauty and her husband Eric Johnson announced that they are expecting their third child, a girl.
"I am very creatively inspired right now," she smiled. "My most important project is always though being a mom and a wife. My kids are five and six now, and being their mom and Eric's wife are the best parts of my life. And my most current project, of course, is growing the baby in my belly. We can't wait to meet her."