Just like a true celebrity marriage, Pete Wentz reveals that he and new wife Ashlee Simpson have signed a prenuptial agreement.

Speaking to Ryan Seacrest on his radio show Tuesday, the Fall Out Boy rocker said, "We have signed a pre-nup."

Ashlee Simpson reportedly told guests at her wedding she is pregnant.

The 'Outta My Head' singer - who wed Fall Out Boy rocker Pete Wentz in a ceremony at her parents' home on Saturday - confirmed to friends and family she is expecting her first child.

Jessica Simpson has officially passed on to her little sister the title of "newlyweds." Ashlee Simpson and Pete Wentz have exchanged vows at her parents' L.A. home Saturday evening.

The couple's spokesperson confirms to People magazine, "We're delighted to confirm that Pete Wentz and Ashlee Simpson were married this evening in front of family and close friends."

Ashlee Simpson "flashed" Pete Wentz the first time they hung out together.

The couple - who are reportedly getting married on Saturday - also revealed that they were "friends with benefits" for a long time before getting together in 2006.

Ashlee Simpson will wed Pete Wentz in a secret ceremony on Saturday.

The 'Pieces of Me' singer and the Fall Out Boy rocker - who got engaged last month - have told guests to keep the day free although they have not let anyone know where the nuptials will take place.

Pete Wentz has joked his wedding to Ashlee Simpson will be inspired by 'Gremlins 2'.

The Fall Out Boy rocker - who got engaged to the singer earlier this year - loves the film, which sees green mischievous monsters take over a New York building.