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Sandra "Pepa" Denton, Deidre "Spinderella" Roper and Cheryl "Salt" James of Salt-N-Pepa at the 1994 MTV Video Music Awards.
Jeff Kravitz/FilmMagic/Getty Images
August 24, 2014 Music has a long history of delivering public health messages, with Ebola the latest topic. But do people really pay attention to the lyrics?
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