Keith Farrelle Cozart (born August 15, 1995), better known by his stage name Chief Keef, is an American rapper and record producer from Chicago, Illinois. Keef's music first became popular among high school students from Chicago's South Side during his teen years in the early 2010s. While he served a house arrest sentence on weapons possession charges in 2012, Keef's popular street single "I Don't Like" was remixed by rapper Kanye West, reaching the Billboard Top 10 and further lifting Keef's profile. A bidding war between major labels resulted in Keef signing to Interscope. His debut album Finally Rich was released in December 2012, and featured the singles "I Don't Like" and "Love Sosa", which would popularize the Chicago rap subgenre drill.

After achieving initial commercial success, Keef faced ongoing legal issues, including further house arrest sentences and a performance ban by the Chicago authorities. Despite being dropped from Interscope in late 2014 and later signing to 1017 Records, Keef continued self-releasing projects through his own Glo Gang label, including Nobody (2014), Back from the Dead 2 (2014), Bang 3 (2015), and Thot Breaker (2017). In recent years, critics have pointed to Keef as a major influence on contemporary hip-hop through his impact on other artists such as Lil Uzi Vert and 21 Savage.

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Rakim Athelaston Mayers (born October 3, 1988), known by his stage name ASAP Rocky (stylized as A$AP Rocky; , AY-sap), is an American rapper, singer, songwriter, record producer, model, actor and music video director. He is a member of the hip hop group A$AP Mob, from which he adopted his moniker. Rocky released his debut mixtape Live. Love. A$AP, in 2011 to critical acclaim. The success of his mixtape led to a record deal with Polo Grounds Music, RCA Records, and Sony Music Entertainment. He subsequently recorded his 2013 debut album Long. Live. A$AP, which was also well received by critics and debuted at number one on the Billboard 200. In 2015, Rocky released his second studio album titled At. Long. Last. A$AP. The album debuted at number one on the Billboard 200, making it Rocky's second consecutive album to debut at number one and has received positive reviews from music critics. Rocky has also directed music videos for himself, Danny Brown, and other A$AP Mob members. Furthermore, he is a noted record producer, producing under the pseudonym Lord Flacko.In July 2019, he was arrested, and in August 2019 found guilty of assault in Sweden. In addition to time already served, he received a suspended prison sentence and was ordered to pay damages of 12,500 Swedish krona (about $1,300 US), split with his two associates, to the victim.