The world's sexiest do-gooders strike again: Brad Pitt and Angelina Jolie donated $1 million Wednesday to help refugees in Pakistan. Jolie is a United Nations ambassador for refugee issues and has worked with the UN Refugee Agency for eight years. Antonio Guterres, head of the refugee agency, calling Pakistan's refugee issue "the most challenging humanitarian crisis of the past decade," with more than two million people are currently displaced after government troops went on the offensive against the Taliban. Only last week, the couple created the Jane Pitt Pediatric Cancer Center, named for Brad's mother, in Springfield, Mo. (Photo: WENN)