Thirty years ago today (July 13, 1985), the nation was gripped to its television screens to watch Live Aid. It was a dual-venue charity concert in Wembley and Philadelphia, watched by around 170,000 in the two stadia and by a further 2 billion worldwide on live television. That’s nearly 40% of the planet’s population at the time. It was also simulcast on Radio 1 in the UK. Everyone talked about it and those of a certain age can remember where they were that day. Let us fast....