Malcolm James McCormick (January 19, 1992 – September 7, 2018), known professionally as Mac Miller, was an American rapper and record producer. Born in Pittsburgh, Pennslyvania, Miller began his career in the city's hip hop scene in 2007,  at the age of fifteen. In 2010, he signed a record deal with Pittsburgh-based independent label Rostrum Records, with whom he had his breakthrough with the mixtapes K.I.D.S. (2010) and Best Day Ever (2011). 
Miller's debut studio album, 'Blue Slide Park' (2011) became the first independently distributed album to top the US Billboard 200  since 1995. In 2013, he founded the record label imprint REMember Music. After his second studio album, 'Watching Movies with the Sound Off (2013), he left Rostrum and signed with the major label Warner Bros. Records in 2014. With them, he released four studio albums: GO:OD AM (2015), The Devine Feminine (2016), Swimming (2018), and the posthumous Circles (2020). For Swimming, he was posthumously nominated for a Grammy Award for Best Rap Album.  He also served as a record producer for various artists, including himself, under the pseudonym Larry Fisherman. Miller struggled with substance abuse, which was often referenced in his lyrics. Miller spoke openly about his struggle with substance abuse and depression. To manage stress during his Macadelic Tour in 2012, Miller began taking promethazine, and later became addicted to lean. Miller told Complex  in January 2013: "I love lean; it's great. I was not happy and I was on lean very heavy. I was so fucked up all the time it was bad. My friends couldn't even look at me the same. I was lost." He quit taking promethazine in November 2012, before shooting his reality show Mac Miller and the Most Dope Family. In 2014, Miller was taking drugs daily, and felt that the final track on Faces, "Grand Finale", was "supposed to be the last song [he] made on Earth." Recounting that period to Billboard in August 2015, Miller was "definitely way healthier" but not "completely" sober. After stating he "hated" being sober in a February 2016 documentary, Miller had become sober for three months by October 2016, noting his better mood and maintained creativity. However, when asked about his sobriety in April 2017, Miller said he was now "living regularly". Miller was in an on-again, off-again relationship with writer Nomi Leasure, whom he met in middle school, for seven years until 2016. Many of the songs on his mixtape Macadelic were about their relationship. Miller dated singer Ariane Grande from August 2016 to May 2018. On September 7, 2018, Miller was found unresponsive in his Studio City home by his personal assistant, who called 911 and performed CPR until paramedics arrived. Miller was pronounced dead at the scene at 11:51 a.m. (PDT). He had been scheduled for a video shoot on the day of his death, and was to embark on his Swimming Tour in October. In his will, Miller named his mother, father, and brother as beneficiaries. He was buried at Homewood Cemetery in his hometown of Pittsburgh, in a Jewish funeral. On November 5, 2018, the Los Angeles County Coroner's office determined that Miller died from an accidental drug overdose due to a "mixed drug toxicity" of fentanyl, cocaine, and alcohol. Three men were arrested in September 2019 during an investigation into Miller's death. Cameron James Pettit allegedly sold Miller counterfeit oxycodone pills containing fentanyl two days before his death, which were run to Pettit by Ryan Reavis and supplied by Stephen Walter. Miller had asked Pettit for Percocet, a prescribed painkiller containing oxycodone, in addition to cocaine and Xanax, Investigators believe Miller snorted the laced pills before his death. The three men were indicted on charges of conspiracy and distribution of drugs resulting in death. Thousands of fans held a vigil for Miller on September 11, 2018, at Pittsburgh's Blue Slide Park,  the inspiration behind his debut album title; the site continues to be a place of remembrance. A tribute concert, Mac Miller: A Celebration of Life, took place on October 31, 2018, in Los Angeles. Many of his friends and collaborators performed or provided messages at the concert; proceeds raised benefited the newly-established Mac Miller Circles Fund, which aims to support youth arts and community-building programs in his memory. The charity had raised over $700,000 by January 2019. In May 2019, the renamed Mac Miller Fund issued its first grants, including $50,000 to MusiCares, which was used to launch their Mac Miller Legacy Fund to help young musicians with substance abuse issues. Miller included Big L, Lauren Hill, Beastie Boys, OutKast, and A Tribe Called Quest among his influences. He had a close relationship with fellow Pittsburgh rapper Wiz Khalifa, saying "Wiz has been a big brother to me with this music thing so far. Our relationship is beyond music. He really is just my homie, whether I will be making music or not."