Who wrote the song? What is the song called?

https://www.youtube.com/watch?v=HUZOKvYcx_o

John Legend Wrote the song and released in 2014, Song is Called 'Common Glory' 

What is Song's purpose?

It's a song of Hope for Society today 

Justice was not fully achieved after the events with Martin Luther King Jr. and the song reflects how justice still needs to be served in situations of police brutality today.

What did you take the song?

The needs of us people on earth, The lack of Equality of people's point of view.