Daniel Hernandez, born in Bushwick, Brooklyn to a Mexican mother and a Puerto Rican father, Hernandez was expelled from school in 8th grade, and did not return. In 2009, his father was murdered, which led to Hernandez working various jobs and selling marijuana in order to help his mother financially.

6ix9ine commercial debut single "Gummo" was released on November 10, 2017 and eventually peaked at number 12 on the US Billboard Hot 100. His next single "Kooda" debuted at 61 on the Hot 100 the week of December 23, 2017. On January 14, 2018, he released his third single "Keke" featuring Fetty Wap and A Boogie wit da Hoodie.

6ix9ine’s first Mixtape “Day69” is coming out February 23, 2018 with 11 tracks and features from, Young Thug, Tory Lanez, Fetty Wap, and more.