Ashlee Simpson, Pete Wentz exchange wedding vows

Rumors of a weekend wedding for Ashlee Simpson and Pete Wentz turned out to be true.

Ashlee Simpson got her fairy tale wedding to Pete Wentz on Saturday complete with an "Alice in Wonderland" themed reception at her parents' Los Angeles area home, according to People magazine.

Simpson, 23, and Fall Out Boy bassist Pete Wentz, 28, exchanged vows in front of 150 people at her parent's home in Encino, a bedroom community in the San Fernando Valley. Joe Simpson, her father, performed the non-denomination ceremony and sister Jessica was the maid of honor, the magazine said.

The bride wore a wedding dress by Monique Lhuillier and a diamond necklace and earrings by Neil Lane, the magazine said. The reception featured a wedding cake piled high with a top hat, tea pot, stop watch and a pot of flowers on top, People said.

A flurry of arrangements on Saturday afternoon just outside the guarded gates of the Simpson's property indicated that the pop singer's wedding to Wentz was imminent.

White shuttle vans with deeply tinted windows were streaming through the gates, as were several delivery vehicles, including some marked as belonging to celebrity chef Wolfgang Puck.

Drivers of a few expensive cars who arrived at the guard tower were told to park elsewhere and take a shuttle. One was a well-dressed woman who arrived in an Audi packed with red boxes.

And of course, the paparazzi had been gathering before 3 p.m., lingering outside the property. Aerial photos posted online Friday on several celebrity Web sites purportedly showed an outcropping of large white party tents.

Simpson and Wentz began dating in fall 2006 and announced their engagement April 9. Rumors that Simpson is pregnant soon followed, but the couple has denied that they are expecting a child.

Simpson, a singer, songwriter and actress, is the younger sister of pop star Jessica Simpson. Ashlee Simpson's latest album, "Bittersweet World," was released last month. It peaked at No. 4 on the Billboard 200 in its first week, and tracks have logged more than 19 million plays on her MySpace page.