For her birthday, Simpson whisked away 30 loved ones on a tropical getaway

By Jodi Guglielmi
July 15, 2015 01:45 PM
PJ Barkley

Jessica Simpson rang in her 35th birthday in style and PEOPLE has all the fun and fabulous details!

The singer-turned-fashion mogul rented a private plane and jetted to St. Bart’s for a week-long celebration.

On the guest list: 30 of her closest friends and family, including husband Eric Johnson and her mother, Tina.

“She rented a few yachts – ‘his’ and ‘her’ yachts. The girls were on one and the boys were on the other,” a source tells PEOPLE. “They spent the days island hopping.”

The men's yacht
PJ Barkley

Simpson was all about letting loose during the trip and the beautiful weather was an incentive to show off her toned figure. When she wasn’t in a bathing suit, she still turned heads in curve-hugging mini-dresses.

During the tropical getaway, the partygoers rode Jet Skis, snorkeled and enjoyed candlelit dinners (fresh seafood and even a mac and cheese bar one of the nights!) catered by a personal chef.

On July 10, the night of her birthday, the group attended a burlesque themed bar where everyone dressed head-to-toe in costumes.

Jessica Simpson and Eric Johnson
PJ Barkley

“She got a lot of sentimental gifts from friends and stuff for her new music studio – and some jewelry and a guitar,” adds the source.

And like with any epic birthday bash, there were plenty of pictures to remember the occasion with.

“I love these vacation babes,” Simpson captioned an Instagram photo.

Reporting by LIZ McNEIL