Bono, George Clooney, Jessica Alba, Idris Elba and more unite behind ONE's new campaign to help focus the world's attention again on the famine and food crisis.

The purpose of the new single, said producer Yael Silver, is to call for unity and healing in the world: “More than ever, people need to know that their voices make a difference and their voices together are incredibly powerful. We Are the World’ spoke to us universally and we wanted to share our un