CHICAGO(BBC ) Chicago born singer-songwriter Terry Callier, who collaborated with Massive Attack and Beth Orton, has died at the age of 67. Callier, who began his career at 17 when he signed to Chess records, recorded his final album in 2009. Hidden Conversations was written and produced with Bristol collective Massive Attack. He also worked on Orton’s Mercury prize nominated album, Central Reservations. Callier died in hospital in Chicago.