The curator of a new exhibition celebrating the 50th anniversary of David Bowie’s album Aladdin Sane has said the record’s artwork is “as powerful today as it was then”.The Aladdin Sane: 50 Years exhibition has been curated by Chris Duffy, the son of photographer Brian Duffy – who worked with the late Bowie to create his highly recognisable lightning flash portrait.Launching on 6 April at the Southbank Centre in London, the collection marks half a century since the 1973 release of the musician's sixth studio album.