Progression

Jay-Z’s “My President is Black“:

My president is black, in fact he’s half white
So even in a racist mind he’s half bright
If you have a racist mind you’re alright
My president is black but his house is all white
Rosa Park sat so Martin Luther could walk
Martin Luther walked so Barack Obama could run
Barack Obama ran so all the children could fly
So I’ll spread my wings you can meet me in the sky.

Check out Jay-Z’s “History” too.