Some Rap Songs will be Earl Sweatshirt 's last album with Columbia .
The album features guest contributions from Navy Blue , Standing on the Corner , as well as vocal samples of Earl 's mother , Cheryl Harris , Earl 's father Keorapetse Kgositsile who is credited posthumously , and an instrumental sample of Earl 's uncle , Hugh Masekela , who is also credited posthumously .
Some Rap Songs