Happy MLK Jr. Day. I started compiling a playlist of social justice and civil rights minded songs after the events in Charlottesville-a musical coping process. Today seems like a good day to share this one. Featuring Curtis Mayfield, Marvin Gaye & Stevie Wonder (The holy trinity of soul), Aretha, Prince, The Impressions, Badu, James Brown, Roberta Flack, Donny Hathaway, Meshell Ndegeocello, Mavis Staples, the O'Jays, The Undisputed Truth, Sly & The Family Stone, Parliament, Billie Holiday, A Tribe Called Quest and many more.