George Clinton, Snoop Dogg, Missy Elliot. The Treacherous Three, Salt 'n' Pepa and a Tribe Called Quest. Whether it's Afrofuturism or gangster chic, rappers have always placed an emphasis on style. But what does hip-hop's evolving image tell us about how the genre has changed over the last four decades?kicks off our audio slideshow by looking at how style plays its part in the genre's history* More information on Hip-Hop: A Cultural Odyssey * This article was amended at 16:13 on July 26. The title was changed from 25 years of hip-hop: a lesson in style to The history of hip-hop: a lesson in style. The original title was an editorial error.