I found this surreal fact from the awesome site of super computer genius emeagwali.com
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"Joan Baez And Jimi Hendrix ChattingFolk singer Joan Baez and rock singer Jimi Hendrix chat between acts at a Biafran Relief Benefit show at a place in Manhattan called Steve Paul's Scene. Both Miss Baez and Hendrix performed free of charge and Hendrix contributed $500 cash to the fund. The benefit was to raise food and money for refugees of the Biafra-Nigeria Civil War. © Bettmann/CORBIS Date Photographed: August 29, 1968 Location Information: New York, New York, USA "