Ashlee Simpson and Pete Wentz were married in a private Saturday evening ceremony, before 150 guests, at the Los Angeles-area home of the bride’s father (Joe Simpson), a rep for the couple has confirmed.

“We’re delighted to confirm that Pete Wentz and Ashlee Simpson were married this evening in front of family and close friends,” a spokesperson for the couple tells People Magazine.

Twenty-three year old Ashlee, who is reportedly expecting the couple’s first child, went glam as she exchanged “I Do’s” with Pete, twenty-eight. The “Bittersweet” bride wore a wedding gown by Monique Lhuillier; accessorizing the stunning frock with a diamond necklace and earrings by Neil Lane.

Here’s to hoping Pete and Ashlee share many wonderful years together. Congrats!