'Hope' - due to reach stores on April 21 - was recorded around the world in just 25 days, with all artists giving their services for free.
Profits from the CD will be donated to the War Child charity for their work in Iraq, where field workers are busy preparing an emergency response to the effects of the current conflict.
McCartney, who has contributed a new version 'Calico Skies', commented: "Whatever the politics, whatever the rights and wrongs of war, children are always the innocent victims.
"I am delighted to be able to make this small contribution to a magnificent project that I hope goes a long way to alleviating some of the pain and suffering."
The full album tracklisting is as follows:
Travis - 'The Beautiful Occupation'
Avril Lavigne - 'Knockin' On Heaven's Door'
Paul McCartney - 'Calico Skies'
David Bowie - 'Everyone Says Hi'
George Michael - 'The Grave'
Ronan Keating - 'In The Ghetto'
Lee Ryan - 'Stand Up As People'
Moby - 'Nearer'
New Order - 'Vietnam'
Basement Jaxx feat. Yellowman - 'Love Is The Answer'
Spiritualized - 'Hold On'
The Charlatans - 'We Got To Have Peace'
Beth Orton - 'O-O-H Child'
Tom McRae - 'Border Song'
Billy Bragg - 'The Wolf Covers Its Tracks'
Yusuf Islam (formerly Cat Stevens) - 'Peace Train'
For more information on War Child, visit www.warchild.org See Related MACCA-News Articles: