Mischa Barton Keeps A Child Alive

Mischa Barton (in Mulberry) arrives in an awesomely-gathered white top at the Black Ball UK in aid of the ‘Keep A Child Alive’ HIV/AIDS charity at St John’s, Smith Square on Thursday in London, England.

The former 22-year-old O.C. star, who wore cute black wedges with gold plates, was joined by stars like Alicia Keys, Russel Brand and his girlfriend Teresa Palmer, Peter Andre, and singer Lemar.

FYI: The Keep A Child Alive organization is an urgent response to the AIDS pandemic ravaging Africa. They provide life-saving medication, support, and orphan care, to keep children and families alive.

15+ pictures inside of Mischa Barton keeping a child alive…