Happy Birthday, Hilary

Actress Hilary Duff arrives at her 18th birthday party at Club Mood on Sept. 28, 2005, in Hollywood, Calif.

Hilary's sister, actress Haylie Duff, left, and fellow actress Brooke Burns at Hilary's 18th birthday party on Sept. 28, 2005, in Hollywood, Calif.

Actress Bonnie Hunt arrives at Hilary Duff's 18th birthday party at Club Mood on Sept. 28, 2005, in Hollywood, Calif. Hunt and Duff costarred in "Cheaper By The Dozen," and reprise their roles in the soon-to-be-released sequel "Cheaper By The Dozen 2."

Josh Madden of "Good Charlotte" arrives at Hilary Duff's 18th Birthday Party at Club Mood on Sept. 28, 2005, in Hollywood, Calif.

MTV's Andy Milonakis is ready to celebrate Hilary Duff's 18th birthday at Club Mood, Sept. 28, 2005, in Hollywood, Calif.

Big sis Haylie Duff arrives to celebrate Hilary's 18th birthday at Club Mood in Hollywood, Calif., on Sept. 28, 2005.

Benji Madden of the band "Good Charlotte" was among those at Hilary Duff's 18th birthday party at Club Mood on Sept. 28, 2005, in Hollywood, Calif.

Even in camouflage, actress Brooke Burns can't hide her excitement to help Hilary Duff celebrate her 18th birthday, Sept. 28, 2005, in Hollywood, Calif.

The birthday girl strikes a pose on the red carpet before her big 18th birthday bash on Sept. 28, 2005, in Hollywood, Calif.