Washington, UNITED STATES
Obama's daughters Malia and Sasha Obama and their grandmother attend a performance at the White House...
U.S. President Barack Obama's daughter Malia and Sasha Obama and their grandmother Marian Robinson (L-R) attend a performance by the singing group "Sweet Honey in the Rock" at the White House in Washington February 18, 2009. REUTERS/Jonathan Ernst (UNITED STATES)
