Tonight's the Fourth Annual Ball to benefit Charity: Water. It boasts a stellar host committee, including Kyra Sedgwick and Adrien Grenier, but on the fashion front it includes Jessica Stam and Blake Mycoskie of Tom's shoes. Lauren Bush, Sessilee Lopez and recent CFDA finalist, Monique Pean are on the guest list, too. Charity: Water's a non-profit organization bringing clean, safe drinking water to people in developing nations and 100 percent of the fund's raised at tonight's gala and silent auction go toward helping the 1 billion people without clean water. The ball's tonight at 7pm at the Metropolitan Pavilion and tickets, $250, are still available here. And, if an excuse to wear a ball gown and do good isn't enough, there's a surprise musical guest, too. See you there!