On Tuesday night, the lovely ladies of Hollywood came out for Avon Foundation’s Champions Who Change Women’s Lives celebration at Cipriani 42nd Street in New York City. The ninth annual Avon Foundation for Women Gala on October 27 honored exceptional women and men for their efforts fighting breast cancer and domestic violence.

The event was hosted by award winning actress and Avon Honorary Chair Reese Witherspoon with a special musical performance by Fergie. More than 550 guests, including Patrick Dempsey, Jillian Dempsey, Courteney Cox, Lauren Conrad and Suze Orman, attended the event and raised $2 million to benefit breast cancer research and access to care and domestic violence education, prevention and victim support programs.

Reese Witherspoon, the current face of Avon, looked fresh and fabulous wearing a Narciso Rodriguez Spring 2010 strapless dress with a sparkly white bodice and a black sheer patent leather-topped overlay skirt.

Glamorous singer Fergie looked just that in a flirty nude ruffled dress with floating feather-trim details.

But the highlight of the night went to Mark spokes-model Lauren Conrad, who blew me away with her retro-glam look.

Conrad showed how a chic, yet simple, dress can be completely transformed into an enchanting overall look with the right hair and makeup.

Lauren made her gray Herve Leger by Max Azria bandage dress red-hot by adding a crimson pout and matching nails.

To top off the look, her classic Hollywood coif was styled in loose waves and a simple embellished barrette.

Charles Baker Strahan, the stylist who created the look, told InStyle he curled her entire head with a 3/4-inch iron, then arranged the tendrils into a low bun. “I left some volume at the bottom so it almost looked like a ’20s bob,” he said.

As for the finishing touch?

“Once Lauren put on her dress, I wanted to finish the look and she had some jewelry out. I picked it, she loved it, and the rest is history!”