The BBC reports that the song features Robbie Williams, Mariah Carey, Rod Stewart, Kylie Minogue, Miley Cyrus, Michael Buble, Jon Bon Jovi, Take That, Mika, James Blunt, James Morrison, Susan Boyle, Westlife, Cheryl Cole and boy band JLS. “X Factor” winners Leona Lewis, Alexandra Burke and Joe McElderry also guest on the track, recorded this week and organized by Syco label boss Cowell.

It is set for digital release Feb. 7 and CD release the day after. Proceeds will go to the Sun newspaper’s Helping Haiti fund and the Disasters Emergency Committee.