Hollywood’s hottest couple has arrived in Haiti – the poorest nation in the Western Hemisphere – to mark the first anniversary of a food aid charity. Actress Angelina Jolie, who is also a UNICEF Goodwill ambassador, and actor Brad Pitt answered a call by Haitian-born singer Wyclef Jean to support his Yele Haiti programme.The couple visited a school and a detention centre in the capital Port-au-Prince. . Jolie, who is already mother to two adopted children, recently confirmed she is expecting a baby this summer. Pitt and Jolie met while shooting a film in 2004. The actor has applied to become the adoptive father of Jolie’s two other children. Pitt has recently joined Jolie in efforts to promote various humanitarian causes including greater assistance to fight poverty in Africa.