Mac Miller, the 26-year-old rapper known for his canny, party-focused wordplay and artistic reinvention, died Friday at his Los Angeles home, Variety reports. The apparent cause of death was a drug overdose. Miller had publicly struggled with substance abuse throughout his career, and had a well-publicized DUI arrest in May of this year.

While initially counted as a member of the frat-rap genre of the early 2010s, Miller’s career was defined by a refusal to fit in an artistic box. He transitioned from party rap to heady backpacker lyricism to jazz-inflected songwriting in his final two albums. To do so, he often turned away from guaranteed commercial success in favor of experimentation and craftsmanship in his work. Read more from Rolling Stone.