Yoko Ono has helped make an Amnesty International fundraiser CD featuring work by her late husband, Beatles legend John Lennon, by donating all music publishing royalties to the cause.

The album, released Tuesday through iTunes, includes 38 recordings of Lennon songs, including three versions of the renowned "Imagine," performed by an array of international stars, including U2, R.E.M., Christina Aguilera and Jack Johnson.

Titled "Make Some Noise: The Amnesty International Campaign to Save Darfur," the project is designed to raise money for Amnesty's humanitarian campaigns, particularly in the Darfur region of Sudan, with 97 percent of the proceeds going directly to the organization.

"We're thrilled to be using John Lennon's songs in our human rights work. We hope this music will bring an awareness of human rights to a new generation," Amnesty International Secretary General Irene Khan said ahead of the release.