A charity album featuring some of the biggest bands in the UK is thought to be the fastest ever produced.
Coldplay, Radiohead, Kaiser Chiefs and Gorillaz were among those who hit studios on Thursday to start recording tracks for Help: A Day in the Life.
The whole 22-track album was made available for download from the War Child website from 1810 BST on Friday.
It will raise money for the War Child charity, 10 years after the original Help album featuring Oasis and Blur.
Radiohead and the Manic Street Preachers were the only two bands to be involved in both Help albums.
HELP 2005 ARTISTS INCLUDE
Antony and the Johnsons
Belle & Sebastian
Keane and Faultline
The Manic Street Preachers
They both recorded brand new tracks as artists took to recording studios all over the world at lunchtime on Thursday.
Coldplay's How You See The World was a late addition to the album, while singer Pete Doherty's band Babyshambles also joined the project at the last minute.
Coldplay's track had been available in Japan but the band remixed it on Thursday in New York to create a new version for War Child.
War Child chief executive Mark Waddington told BBC News: "It went really close to the wire but it's great to have them on board."
Rock band Keane are patrons of the War Child charity
Keane, who are patrons of the charity, recorded a version of Elton John's Goodbye Yellow Brick Road, while Radiohead recorded a new track, I Want None Of It.
Antony and the Johnsons, fresh from picking up the Mercury Music Prize on Tuesday, recorded a version of John Lennon's Happy Xmas (War is Over) with Boy George.
Gorillaz laid down their song in Hong Kong and Kaiser Chiefs recorded I Heard It Through the Grapevine during a break from their tour in Berlin.
The Magic Numbers, The Coral, Bloc Party, Hard-Fi, Mylo and Razorlight are among the other artists who took part.
Razorlight frontman Johnny Borrell told the BBC News website: "Someone called us up and asked if we wanted to get involved and we said 'yes'. It was as simple as that.
"War Child is something I have always been aware of. We are just happy to help and do our bit."
HELP 1995 ARTISTS INCLUDED
The Manic Street Preachers
The Mojo Filters (Paul Weller, Noel Gallagher, Paul McCartney)
The One World Orchestra (KLF)
The Stone Roses
Each track costs 99p to download and a CD version of the full album will be released on 26 September.
The project will raise money to help young victims of conflicts around the world.
In 1995, the first Help album raised more than £1.25m for children caught up in the Bosnian war.
The songs were recorded in a single day and CD and cassette versions of the album, also featuring The Stone Roses, Massive Attack, Suede, and Sir Paul McCartney, were in the shops five days later.
It sold 71,000 copies on the same day and went straight to the top of the album charts.
Full track list for Help: A Day in the Life
- Antony and the Johnsons and Boy George - Happy Xmas (War is Over)
- Babyshambles - Bollywood to Battersea
- Belle & Sebastian - The Eighth Station of the Cross Kebab House
- Bloc Party - The Present
- Coldplay - How You See The World
- The Coral (produced by Portishead's Geoff Barrow and Adrian Utley) - It Was Nothing
- Damien Rice - Crosseyed Bear
- Elbow - Snowball
- Emmanuel Jal - Gua
- The Go! Team - Phantom Broadcast
- Gorillaz - Hong Kong
- Hard-Fi - Help Me Please
- Kaiser Chiefs - I Heard It Through the Grapevine
- Keane and Faultline - Goodbye Yellow Brick Road
- The Magic Numbers - Gone Are the Days
- The Manic Street Preachers - Leviathan
- Maximo Park - Wasteland
- Mylo - Mars Needs Women
- Radiohead - I Want None of It
- Razorlight - Kirby's House
- Tinariwen - Cler Achel
- The Zutons - Hello Conscience