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<http://i3.mirror.co.uk/incoming/article755727.ece/ALTERNATES/s1200/Eric%20Clapton%20on%20stage%20at%20Nelson%20Mandela%2070th%20Birthday%20Tribute%20Concert,%20Wembley%20Stadium,%20London,%2011th%20June%201988>
<http://www.mirror.co.uk/news/world-news/nelson-mandela-death-how-music-1484315>