Does hip-hop help or hinder society? Join Intelligence Squared and Google for the first ever global debate on this question. Speakers include rappers such as KRS-One and US hip-hop intellectuals such as Touré, Michael Eric Dyson, Tricia Rose and dream hampton. Some will be on stage at the Barbican Centre and others will be appearing on the big screen via the Google + Hangout technology. So come to the Barbican or watch live on YouTube and vote online.