Mischa Barton donned a twisted white cut-out dress to the Britain Women for Women gala.
The 26-year-old actress accessorized the Marilyn Monroe-esque dress with a nude purse, gold necklace, black stiletto sandals and plum lipstick.
"Everyone should support this charity Women for Women. Beautiful ppl that help women everywhere + in the congo," Barton Tweeted on May 3. The event, which celebrates the charity's sixth birthday, was held in Guildhall, London.
Barton is best known for her role as Marissa Cooper on the show "The OC," and over the years has become a fashion fixture on the red carpet.
The British-born actress launched a collection of handbags in 2008. Even though her line is only available in stores in the UK and Japan, people in the US can purchase her handbags on the fashion website ASOS.com.
Barton recently debuted a full Spring/Summer 2012 fashion line, inspired by vintage finds and personal style. She also opened her first store in London.
Barton recently made headlines, walking the streets of Los Angeles in nothing but leopard print underwear for Noel Gallagher's music video for a single on his record, "High Flying Birds."
"It just never gets old working on a project, seeing it splashed about on the internet ahead of time the next day!!! LOVE NOEL," Barton Tweeted on April 24, adding, "The video for high flying birds is gonna be really beautiful, awesome team yesterday!!"
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