But not without a mini hiccup first.
According to E! News, the singer was so excited/nervous while reciting her vows that she actually uttered her own name during them instead of her about-to-be-husband's. Oops!
But Simpson laughed, recovered and then made things right on her second try.
The wedding was attended by over 250 guests, while Simpson donned a custom-made Carolina Herrera gown for the beautiful occasion.
The couple's 1-year-old son served as a ring bearer, while their two-year-old daughter walked down the aisle as a flower girl. Maxi.
She was adorable was accompanied by Ashlee Simpson's five-year-old son, Bronx Wentz.
During the reception, Eric's father gave lovely toast, though neither of Simpson's parents made speeches.