Jessica Simpson and her longtime fiancé Eric Johnson have finally become Mr. and Mrs. After a three-and-a-half year engagement, the couple got married on Saturday, July 5 at the San Isidro Ranch in Santa Barbara, Calif.

According to People magazine, the 33-year-old bride walked down the aisle in a custom-made Herrera gown and veil with Brian Atwood shoes and Neil Lane jewelry. Sources revealed that the couple exchanged vows in front of more than 250 guests including celebrities Jessica Alba, Donald Faison, CaCee Cobb, Topher Grace, Ashlee Simpson, Evan Ross and Cash Warren.  

The wedding was officiated by Simpson's father, Joe.  A source told E! News that both the fashion designer and her former football player beau flubbed their lines while reading their wedding vows. Reportedly Johnson was so nervous that he had to start over and Simpson accidentally said her own name instead of Johnson's. Thankfully, the two were able to laugh it off and continue on with the wedding.

"We are overwhelmed with complete happiness and love having made our eternal commitment," the couple said in a statement to People. "To say, 'I do' in front of family, friends and, most importantly, our children has been the happiest moment of our lives."

"The whole weekend was magical for us," Simpson added. "We feel complete."

According to E!, Simpson and Johnson's 1-year-old son, Ace, was the ring bearer and their 2-year-old daughter, Maxwell, was the flower girl. Ashlee's 5-year-old son, Bronx Wentz, also walked down the aisle with baby Max.

"It was very emotional," a source told E! "Jessica looked very happy on her wedding day."

The source said that as women left the wedding they were given rose-colored leather totes filled with items designed by Simpson, including sunglasses. The bags also had a few treats for the ladies to enjoy.

"You better believe it was, 'Wow!'" one guest told E! about the ceremony. "That freakin' [wedding] must have cost a million bucks. It was fantastic."