To celebrate Juneteenth 2021, Chicago MC Saba—who happened to graduate from high school at 16—wrote “Black Astronaut,” where he channels a conspicuously childlike sense of adventure, an exclusive song for Apple Music’s Freedom Songs collection of covers and originals. “‘Black Astronaut’ is a song that deals with the process of going through adulthood but still hanging on to the childlike innocence of living in oblivion,” he says. “Believing in yourself undeniably, having no doubt, not [being] afraid of all the pressures of the world. It’s a song that I would have loved to hear as a kid.”