Conversation so far:
What humanitarian work was Harry Belafonte involved in?
In 1985, he helped organize the Grammy Award-winning song We Are the World, a multi-artist effort to raise funds for Africa.
How much did Harry Belafonte raise with the song We Are the World?
The promotion and merchandise aided the success of We Are the World and raised over $63 million (equivalent to $144 million today) for humanitarian aid in Africa and the US.

Question: What did he do to help organize the song?
Self-contained rewrite: What did Harry Belafonte do to help organize the song We Are the World?