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On this day in music history: July 13, 1985 - The Live Aid concert is broadcast live via satellite worldwide. Organized by Bob Geldof, the two concerts held at Wembley Stadium in London and JFK Stadium in Philadelphia will consist of over 50 acts performing to over 172,000 fans and a TV viewing audience of 1.9 billion people. The event will raise over $300 million for Ethiopian famine relief at the time of the original broadcast. An abridged edition of the historic concerts, featuring ten of the 16 hours worth of performances originally broadcast, will be released as a four-disc DVD box set in November of 2004, eight months shy of the event's 20th anniversary. The entire concert is not released due to video tapes of certain performances having gone missing over the years, with ABC (one the original US broadcast carriers) having erased their broadcast tapes of the event (at Bob Geldof's request). However MTV did preserve their tapes as well as the BBC (though some performances were also lost). Other performers such as Led Zeppelin and Santana will ask to have their performances omitted, feeling they are subpar. In lieu of their performances appearing on the box set, they will donate money to the Band Aid Trust instead.