The most comprehensive retrospective to date in the UK on American artist Jean-Michel Basquiat opened today at the Barbican Centre in London. The opening was heralded by two brand-new pieces by street artist Banksy in celebration of Basquiat. Banksy’s tribute couldn’t be any more fitting as Basquiat didn’t only start his career as a graffiti artist, but his colourful and ‘freestyle’ drawings have clearly influenced so many graffiti writers and street artists ever since.