Sir Bob Geldof has joked that he gets "blue in the face listening to "f***ing Freddie Mercury" and Queen at Live Aid.
The Boomtown Rats star organised the 1985 musical jukebox charity concert with fellow musician Midge Ure to raise funds for relief of the 1983–1985 famine in Ethiopia, which started with the release of the all-star charity hit 'Do They Know It's Christmas?'.
