Billie Holiday's song "Strange Fruit" was a powerful protest against the lynching of African Americans in the United States. The song's lyrics described the gruesome details of lynchings and the indifference of white society to this violence.

Music for Human Rights is a non-profit organization that uses music to raise awareness about human rights issues and to promote social change. The organization has worked with a variety of artists, including Bono, Sting, and Bruce Springsteen.

Pete Seeger's song "I Can't Write Left-Handed" was a protest against the imprisonment of political prisoners in South Africa. The song's lyrics described the harsh conditions in South African prisons and the resilience of the prisoners.

Conspiracy of Hope was an album that was released in 1986 by a group of musicians to raise money for Amnesty International. The album featured songs by artists such as U2, Sting, and Peter Gabriel.

Bob Marley's song "Get Up, Stand Up" became an anthem for the anti-apartheid movement in South Africa. The song's lyrics called for unity and resistance against oppression.

The Red Hot Organization is a non-profit organization that uses music to raise awareness about the AIDS crisis and to promote social change. The organization has worked with a variety of artists, including Bono, Sting, and Bruce Springsteen.

John Lennon's song "Imagine" became a global anthem for peace and unity. The song's lyrics imagined a world without war, poverty, or hunger.

Kosovo Relief Fund was an album that was released in 1998 by a group of musicians to raise money for the victims of the Kosovo War. The album featured songs by artists such as U2, Sting, and Peter Gabriel.

Edwin Starr's song "War" became an anthem for the anti-war movement during the Vietnam War. The song's lyrics condemned the violence and destruction of war.

Music Against Trafficking is a non-profit organization that uses music to raise awareness about the issue of human trafficking and to promote social change. The organization has worked with a variety of artists, including Bono, Sting, and Bruce Springsteen.

Bob Marley's song "Redemption Song" became an anthem for the struggle for racial justice in South Africa. The song's lyrics called for liberation and an end to oppression.

Hope for Haiti Now was an album that was released in 2004 by a group of musicians to raise money for the victims of the Indian Ocean earthquake and tsunami. The album featured songs by artists such as U2, Sting, and Peter Gabriel.

Bob Dylan's song "Blowin' in the Wind" became an anthem for the civil rights movement in the United States. The song's lyrics asked a series of rhetorical questions about social injustice and inequality.

Music for Climate Justice is a non-profit organization that uses music to raise awareness about the issue of climate change and to promote social change. The organization has worked with a variety of artists, including Bono, Sting, and Bruce Springsteen.

Billie Holiday's song "Strange Fruit" was a powerful protest against the lynching of African Americans in the United States. The song's lyrics described the gruesome details of lynchings and the indifference of white society to this violence.