Held July 13, 1985, Live Aid was an international music event, watched on television by 1.4 billion people worldwide, and generating an estimated $100 million. The brainchild of British pop star Bob Geldof, the concert was intended to raise money for the victims of famine in Ethiopia. Geldof had been shocked to see the October 1984 BBC documentary by Michael Buerk concerning the famine victims, and teamed with friend Midge Ure to write "Do They Know It's Christmas?", which was recorded in November 1984 by 40 British and Irish rock superstars, collectively known for the occasion as Band Aid. The US effort, USA For Africa, recorded "We Are the World" written by Michael Jackson and Lionel Ritchie and featuring an equally impressive lineup of American superstars. Geldof, buoyed by his success at getting artists and the record industry to donate their talents for Band Aid, planned a gigantic multi-venue event to be broadcast world-wide. Assisted by concert promoters Harvey Goldsmith and Bill Graham, the task of organizing such an enormous concert and get it all done for free seemed insurmountable, but Geldof somehow managed to pull it off, prompting Goldsmith to quip that "Next time Bob has an idea, I'm going on holiday." The lineup Geldof managed for the concerts was dazzling. The British concert at London's Wembley Stadium featured acts such as Geldof's Boomtown Rats, U2, Sting, a reformed-for-the-occasion Who and Led Zeppelin, Elton John, Paul McCartney, and Queen. In the US, Tom Petty, the Cars, Phil Collins, Eric Clapton, Mick Jagger and Bob Dylan all contributed memorable sets. Unfortunately, Geldof was not successful in obtaining permissions to release the concert footage on CD or video, so those who wish to re-visit the memories must rely on their own or others' videotapes. The success of Live Aid spawned a number of other noteworthy fund-raising concerts, particularly Farm Aid, which arose from a chance comment by Bob Dylan during his set that it would be nice to have a similar event for the American farmers.