What's Going On?

My favorite album of all time is Marvin Gaye's What's Going On?, from 1970.  I've included a few of the songs from it below.

What made Marvin Gaye different was his fascinating combination of attributes-- a three-octave vocal range, combined with a social conscience that took him to places his record label (Motown) did not want to go.  I still listen to these songs and marvel.