Genres: Pop, Dance Released: Nov 27, 2007 2007 SONY BMG MUSIC ENTERTAINMENT (GERMANY) GmbH. Annie Lennox and her choir of 23 -- including Madonna, Fergie, Celine Dion, Pink, Gladys Knight, Sarah McLachlan and more -- get several very danceable mixes here. Proceeds go to the Treatment Action Campaign to fight the genocide of AIDS in Africa. "Sing, my sisters, Sing!" And, with this, dance, brothers and sisters, dance!