Don't Look Back was the final song of the memorial/tribute concert for Boston lead vocalist Bred Delp in August of 2007. Delp passed away in 2007, having committed suicide. He did so as neatly and quietly as he could in his home, with numerous considerate notes for those who would find him. This included notes asking after the continued care of his pet cat. Further notes claimed that he had suffered bouts of depression since his teenage years, though he had never let anyone on to such a problem.