Lanez was sentenced in 2023 for three felony gun-related charges, including assault with a semi-automatic firearm.
He shot Megan Thee Stallion, whose legal name is Megan Pete, as they were leaving a pool party at reality star Kylie Jenner's Hollywood mansion.
The pair argued inside a vehicle about their previous sexual relationship and careers, Megan Thee Stallion testified during the trial.
She said that she had demanded to be let out of the vehicle, at which point Lanez started shooting at the ground and shouted at her to "dance".
She required surgery to remove bullet fragments from her foot.
Lanez refused to apologise and maintained his innocence in the shooting.
The case divided the hip-hop world with rappers - including 50 Cent and Iggy Azalea - appearing to take sides in the conflict. Some of them wrote to the court to ask for leniency in Lanez's sentencing.
Lanez had seven US top 10 albums in the seven years before his conviction. He has teased the release of a new album from prison titled Peterson.