Jessica Simpson Wears a $4,000 Cocktail Dress (Literally!) to a Friend's Wedding

The star made up her own rules when it came to wedding guest dressing, wearing a low-cut Dolce & Gabbana cocktail-print dress that retails for $3,995 to a friend's Palm Springs wedding.

Martinis for Mark and Teenie 🍸#MarTeenie

A post shared by Jessica Simpson (@jessicasimpson) on May 13, 2017 at 7:24pm PDT

Jessica Simpson just flipped the script on wedding guest attire.

The star, 36, wore a cocktail dress covered in different tropical drinks — and it just happens to cost more than a typical wedding dress. Simpson and husband Eric Johnson attended the wedding of hairstylist Christine Symonds in Palm Springs over the weekend.

The designer pulled out all the style stops in a low-cut Dolce & Gabbana cocktail-print dress that retails for $3,995 (and is selling out fast in case you’re looking to splurge for those summer weddings on the calendar). The V-neckline on the whimsy dress features lace trim and the design is adorned with decorative buttons down the back.

For his part, Johnson, 37, wore a navy suit and sleek striped tie. The couple also took pictures with guests Chelsea Handler and Odette Annable.

I love us. #marteenie

A post shared by baylormcg (@baylormcg) on May 13, 2017 at 6:46pm PDT

Wedding weekend. @christinesymondshair @odetteannable @jessicasimpson so much fun!

A post shared by Chelsea Handler (@chelseahandler) on May 15, 2017 at 1:54pm PDT

RELATED PHOTOS: Dress Codes, Decoded! 30 Gorgeous Dresses to Wear to Any Type of Wedding, on Any Budget

Simpson and Johnson tied the knot in July 2014 at the San Ysidro Ranch in Montecito, California. For her wedding, the singer-turned-fashion designer wore a custom Carolina Herrera gown that featured a sumptuous champagne and gold strapless multi-layer tulle skirt which she accessorized with a cathedral length veil, Brian Atwood shoes and Neil Lane jewelry.

The couple is parents to 5-year-old daughter Maxwell and 3-year-old son Ace.