On this day in 1985 (13 July 1985), nearly 2 billion people tuned in to the Live Aid concerts that took place in London and Philadelphia. The original event was organised by Bob Geldof and Midge Ure to raise further funds for relief of the 1983–1985 famine in Ethiopia, a movement that started with the release of the successful charity single "Do They Know It's Christmas?" in December 1984. Billed as the "global jukebox", Live Aid was held simultaneously at Wembley Stadium in London, attended by about 72,000 people, and John F. Kennedy Stadium in Philadelphia, attended by 89,484 people.
On the same day, concerts inspired by the initiative were held in other countries, such as the Soviet Union, Canada, Japan, Yugoslavia, Austria, Australia, and West Germany. It was one of the largest satellite link-ups and television broadcasts of all time; an estimated audience of 1.9 billion, in 150 nations, watched the live broadcast, nearly 40 percent of the world population.