"We are overwhelmed with complete happiness and love having made our eternal commitment," the couple told PEOPLE. "To say 'I do' in front of family, friends and, most importantly, our children has been the happiest moment of our lives."
According to the magazine, the 250-person guest list included the fashion mogul’s closest friends and family: sister Ashlee Simpson and fiancé Evan Ross, best friend Cacee Cobb and husband Donald Faison, hairstylist BFF Ken Paves, and pal Jessica Alba and husband Cash Warren.
The couple’s daughter Maxwell, 2, played flower girl while their son 1-year-old son Ace served as ring bearer.
The super-slender bride, 33, donned a custom Carolina Herrera gown for her luxury nuptials.