backing vocals Guests David Bowie – lead vocals on "Arnold Layne" and "Comfortably Numb" David Crosby and Graham Nash – backing vocals on "Shine On You Crazy Diamond", "On An Island", and "The Blue"; harmonised lead vocals on "Find the Cost of Freedom". Robert Wyatt – cornet on "Then I Close My Eyes" Charts Weekly charts Certifications References External links David Gilmour's official website David Gilmour's official blog Remember That Night DVD Premiere Photos David Gilmour video albums Live albums recorded at the Royal Albert Hall 2007 video albums Live video albums 2007 live albums