Steve Lacy was born on May 23, 1998, in Compton, California. His mother, Valerie, is African-American and his father was Filipino. Lacy did not really know his father and said that he came only around for special occasions, such as birthdays; he died when Lacy was ten years old. Lacy attended private school for most of his childhood and has said that he grew up sheltered, a result of his mother wanting to shield him and his sisters from the environment at the time in Compton.
Lacy revealed in 2018 that he produced for fellow Compton native, rapper YG, and that he was now using devices other than his phone to produce music. In March 2019, Lacy was credited for producing on two tracks off of Solange’s When I Get Home album