8. Leonard Cohen, 'Popular Problems'
Leonard Cohen's amazing comeback that began with his 2008 tour and his 2012 disc Old Ideas continued this year with Popular Problems, his 13th LP since emerging on the scene back in 1967. The disc is produced by Patrick Leonard, best known for his work with Madonna in the 1980s. "We were both, I think, quite compassionately savage about our vision," Cohen told Rolling Stone. "If something's obscure or just on the wrong side of accessible, then Pat will mention that and I'll happily redirect." Check out the songs "Almost Like the Blues" and "Nevermind." They are some of the greatest songs ever produced by an octogenarian.