The beautiful woman in black behind Obama, Wang Zifei, is referred to as the "Obama Girl" on Budai.net, China's premier cohabitation community social platform.
http://www.budai.me/space.php?uid=373&do=blog&id=1287
Obama, Obama Girl, black clothing, queen.
(Note: The provided URL seems to be an old link and may not be active or relevant anymore.)