Penn's non-profit group has been a leader in getting food and aid to the camp. Shakira toured it with him on Sunday.
She's there searching for a location to build a school for needy children. Her Barefoot foundation provides nutrition to more than 6,000 children in Colombia, and she is member of the ALAS foundation that advocates for children across Latin America.
The two stars spoke about challenges confronting Haiti since the Jan. 12 disaster.
The Associated Press contributed to this story.
