The benefit event combines fabulous dresses with raising money for Chrysalis - a non-profit organisation aimed at helping people out of homelessness and poverty. Olivia Wilde was amongst those being honoured for their charitable works.
In addition to saluting the stars for their generosity, we do love a good gown so we were glad the stars obliged.
Guest of honour, Olivia, arrived in a circle print dress with sheer sleeves, while Jennifer Garner opted for a classic YSL cocktail dress and peep-toe heels. Ashley Greene donned similar shoes but added a pop of colour with a strapless coral dress and Molly Sims looked stunning in a pale gown - although she might as well not have bothered given all eyes were on her new diamond engagement ring!
Who gets your vote for belle of the ball?