US first lady Michelle Obama, center, walks down a street as she visits Marbella, in southern Spain. Wednesday, Aug. 4, 2010. The White House says first lady Michelle Obama is in Spain for a private trip with longtime family friends. (AP Photo/Sergio Torres)

Photo by: Sergio Torres

US first lady Michelle Obama, center, walks down a street as she visits Marbella, in southern Spain. Wednesday, Aug. 4, 2010. The White House says first lady Michelle Obama is in Spain for a private trip with longtime family friends. (AP Photo/Sergio Torres)