Stuart Maconie presents a series highlighting some of the most influential days in the history of rock. This programme focuses on the Live Aid concerts organised by Bob Geldof in London and Philadelphia, which attracted a television audience of 1.4 billion in 170 countries. The £70 million which came in for famine relief is still the most money ever raised for charity by a single event. With contributions from Michael Buerk, Roger Taylor, Johnny Black and Bob Geldof.