Ashlee Simpson and Pete Wentz exchanged vows in an intimate wedding ceremony on Saturday evening, their spokesperson has confirmed. The top-secret event was held at Simpson's parents' home in Encino, California, and was attended by 150 guests, including Nicole Richie and Joel Madden, actor Donald Faison and the pop star's big sister Jessica, who served as maid of honor.

Jessica's boyfriend, Dallas Cowboys quarterback Tony Romo, was also present at the ceremony, despite reports the couple has split.

Ashlee wore an ivory lace Monique Lhuillier gown, complete with a diamond necklace and earrings by Neil Lane.

Father of the bride Joe Simpson, a former Baptist minister, performed the non-denominational service, and Fall Out Boy bassist Wentz's English bulldog, Hemingway, was the ring-bearer, reports People.com.

Confirming the reports on Saturday night, the couple's representative says, "We're delighted to confirm that Pete Wentz and Ashlee Simpson were married this evening in front of family and close friends."

The newlyweds celebrated their new status as husband and wife with an Alice in Wonderland-themed reception, with black beauty roses by Mark's Garden decorating each table. The wedding cake, by Sam Godfrey of Perfect Endings, featured a top hat, a tea pot, a stop watch and a pot of flowers on top.

The marriage comes amid rumors Ashlee is pregnant with the couple's first child. Both stars have repeatedly dodged questions surrounding the alleged pregnancy, refusing to confirm or deny the reports.

Pics of the happy couple:
-Ashlee Simpson
-Pete Wentz

(This news article provided by World Entertainment News Network)