Despite scoring the No. 1 spot on BIllboard with his debut album, Blue Slide Park, Mac still considers himself an "underground rapper." Considering that he's an independent artist who gets little to no radio play, he's kind of got a point. Even though the term "underground" has become somewhat obsolete in this Internet-driven era of music, having 3 million Facebook fans is no joke.
He Considers Himself an "Underground Rapper"