John Mayer refuses to release albums.
John Mayer . His following two full-length albums -- Room for Squares ( 2001 ) and Heavier Things ( 2003 ) -- did well commercially , achieving multi-platinum status . Both albums received wide critical acclaim , and Continuum earned Mayer a 2007 Grammy Award for Best Pop Vocal Album . By 2014 , he had sold a total of over 20 million albums worldwide .