The former Newlyweds: Nick and Jessica star, Fashion Star mentor and The Price of Beauty star has wed longtime fiance Eric Johnson.
Simpson, 33, and the NFL football player, 34, tied the knot in front of 250 guests at the San Ysidro Ranch in Santa Barbara, CA, on Saturday, Peoplereported.
"We are overwhelmed with complete happiness and love having made our eternal commitment," the couple told People in a joint statement.
"To say 'I do' in front of family, friends and, most importantly, our children has been the happiest moment of our lives."
Simpson reportedly wore a custom Carolina Herrera wedding gown and her two children with Johnson played a big role in the ceremony. Ace, 1, served as a ring bearer, while Maxwell, 2, took on the part of a flower girl. Maxwell walked down the aisle alongside Bronx, who is the five-year-old son of Simpson's sister Ashlee.
Simpson and Johnson got engaged in November 2010, however, their wedding plans were postponed twice due to unplanned pregnancies. Simpson has also worked hard in recent months on her post-baby body via the Weight Watchers program.
Simpson, a fashion designer and former singer, starred in MTV's Newlyweds reality series with ex-husband Nick Lachey between 2003 and 2005. She also starred on The Price of Beauty, which began airing in March 2010.
Simpson later appeared onFashion Star, which concluded in May of last year, as a mentor for two seasons.