With boyfriend Pete Wentz, the 23-year-old parties in pink with 200 pals
Credit: Michael Caulfield/WireImage
Updated: Tuesday Oct 16, 2007 | 06:00 AM EDT
More from PEOPLE
See More News
1 of 6
Ashlee Simpson and boyfriend Pete Wentz celebrate her 23rd birthday with,
like, a totally awesome party: an '80s prom night theme bash at her parents'
house in L.A. earlier this month.
Copyright © 2013 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL