Ex-Police man holds forth on 20 Feet From Stardom, the charming film that celebrates backing singers. "I just like singing," writes Sting, in an exclusive missive to MOJO, "and I especially like singing with my friends." The statement is à propos of 20 Feet From Stardom, one of 2014's Oscar-nominated documentaries and a fascinating celebration of the unsung heroes and (mostly) heroines of rock and pop: the backing/backup/background vocalists (delete as geographically appropriate). Playing a big part in Morgan Neville's film are powerhouse singer Lisa Fischer and her elegant jazz-centric colleague, Jo Lawry - both longtime fixtures in Sting's touring band...