The evolution of hip-hop

Hip-hop has taken over the mainstream since it was born in the Bronx house parties of the 1970s. Sophie Bramly’s recent book of photography ‘Yo! The Early Days of Hip-Hop 1982-84’ documents its rise, while a new documentary ‘Jeen-Yuhs’ charts the contribution of one of the genre’s most important innovators, Kanye West. Robert Bound is joined by ‘The New Yorker’ staff writer Kelefa Sanneh to discuss the evolution of what is arguably America’s most significant cultural export.