More than 21 artists contributed to the cover of REM's Everbody Hurts, including Take That, Susan Boyle and Kylie Minogue.
Pop mogul Simon Cowell hastily arranged the record, which was available to download from 7 February 2010.
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Leona Lewis opened the track, followed by Rod Stewart, Mariah Carey, Cheryl Cole, Mika and Michael Buble.
Parts of the song were recorded in London, while artists - including Robbie Williams - put down their vocals in Los Angeles.
Stein Morten Lund, 16 February 2010