"Heal the World" is a song featured on Michael Jackson's hit album, Dangerous, released in 1991. The music video features children living in countries suffering from unrest.
In a 2001 Internet chat with fans, Jackson said "Heal the World" is the song he is most proud to have created. He also created the Heal the World Foundation, a charitable organization which was designed to improve the lives of children. The organization was also meant to teach said children about how to help others. (From the Wikipedia)