Mark Ndesandjo, the intensely private half brother of President-elect Barack Obama, plays the piano to raise money for orphans during a charity concert in Shenzhen, southern China, Friday, Jan. 16, 2009. The press release for the concert didn't reveal the long-kept secret of who Mark Ndesandjo really is, and nor did the posters and e-mails promoting the event in this southern Chinese boomtown where he wore a brown silk Chinese-style shirt while playing the piano to raise money for orphans. [Agencies]