John Mayer sings.
John Mayer . His following two full-length albums -- Room for Squares ( 2001 ) and Heavier Things ( 2003 ) -- did well commercially , achieving multi-platinum status . He also won Best Male Pop Vocal Performance for `` Waiting on the World to Change '' . After extensive treatments for his vocal problems -- and a two-year hiatus -- Mayer began performing as a singer again in January 2013 , and that year released the album , Paradise Valley .