On this day in history on July 13th, 1985, the biggest rock concert and charity event in the history of the world was staged simultaneously in London and Philadelphia. “Live Aid” was broadcasted on two sides of the Atlantic Ocean to a global audience of 1.5 billion. It was conceived and organized by the Irish pop star Bob Geldof in response to the disastrous east African famine of 1984-1985, Live Aid raised upwards of £40 million (then equivalent to roughly $50 million) in relief aid via ticket sales and direct contributions from television viewers.