Rachel Bilson, best known for her stint on "The O.C." and as the talking 2X4 in the movie JUMPER, hosted an event at the Bellagio Resort Hotel and Casino in Las Vegas on Friday night referred to as "The Ultimate Bachelorette Party." I thought she was dating Hayden after they met on the set, but whatever. I do know that she could have picked a more flattering dress to go with that pretty face of hers. This looks like something Mrs. Roper's little sister would have worn.
Click on each photo to enlarge!