Jessica Simpson treats herself with diamonds

Singer Jessica Simpson says whenever she signs a big business contract, she splurges on expensive earrings.

"Every time I sign a big contract, I trade the ones I own in for a bigger pair," Simpson told people.com.

The 35-year-old singer said that her new fashion collection pays homage to her "Dukes of Hazard" character Daisy Duke as it features a pair of red cowboy boots.

"Daisy's red cowboy boots ended up being (the inspiration for) the first shoe to launch my collection, (and) I was really excited to bring them back for the 10th anniversary," she said.

"As the collection has evolved, we've always kept that All-American spirit. When we do store visits or personal appearances, I still see girls wearing the original cowboy boot. I love that. We all have those iconic pieces in our wardrobe and I am thrilled that people have embraced our brand that way," she added.