Rage Against the Machine guitarist Tom Morello and Porcupine Tree mastermind Steven Wilson are listed among musicians working on the new charity single "Hello," represented by Ray Holroyd and his Revolution Harmony.
The charity's previous single brought together Serj Tankian of System of a Down, Emperor's Ihsahn and Devin Townsend.
This time around, the project features six musicians, including Kool Keith, Madchild (Swollen Members), Eric Wainaina, and White Noize alongside Tom and Steven.
Halroyd will also appear on the track, which is due out on July 28. All the proceeds will go towards Hope Runs, which aims to improve the lives of Kenyan orphans stricken with AIDS. For more info head over to the official website.