Live Aid was a dual-venue concert that was held on 13 July 1985. The event was organized by Bob Geldof and Midge Ure to raise funds for relief of the ongoing Ethiopian famine. Billed as the "global jukebox", the event was held simultaneously in Wembley Stadium in London, England, United Kingdom (attended by 72,000 people) and John F. Kennedy Stadium in Philadelphia, Pennsylvania, United States (attended by about 100,000 people). On the same day, concerts inspired by the initiative happened in other countries, such as Australia and Germany. It was one of the largest-scale satellite link-ups and television broadcasts of all time: an estimated global audience of 1.9 billion, across 150 nations, watched the live broadcast.[2

1985 年 1 月的一个夜晚，音乐界最大牌的明星聚在一起，录制《四海一家》。这部纪录片带我们走进该历史性事件的幕后。

A Kentucky slave (Davis) fights for his freedom from a cruel overseer whose mistress eventually joins him and the other slaves in their revolt.