Michelle Obama, wife of American President Barack Obama, was greeted by crowds of delighted children when she made a surprise visit to Haiti.
She went to meet officials and the people of Haiti - which was devastated by a powerful earthquake in January. America is helping to rebuild the country.
Michelle's visit was kept a secret for security reasons. Here's her helicopter arriving at the presidential palace in Haiti's capital, Port-au-Prince.
She met the President of Haiti, Rene Preval. Her trip was partly to reassure the people that America will continue to support them.
She visited lots of projects which have been set up to help the people of Haiti, many of whom have lost relatives and homes.
Michelle also met lots of local children. Here she is at a school where she took part in a painting lesson with the pupils there.
Many of the local children were really excited to see her, and gathered around to say hello.