With the 30 years he recently started serving in a New York case, federal prosecutors on Thursday sought a court to sentence singer R. Kelly to an additional 25 years in prison for his child pornography and enticement convictions from last year in Chicago.

If the judge grants both the 25-year sentence and another government request that Kelly start serving his Chicago sentence until after the 30-year New York sentence is over, the 56-year-old won’t be eligible for release until he is close to 100.

Prosecutors called Kelly a “serial sexual predator” who has no regrets and “poses a substantial danger to society” in their sentencing proposal, which was submitted late Thursday in U.S. District Court in Chicago.

The 37-page government document claims that the only way to guarantee Kelly won’t commit another crime is to give him a sentence that will keep him behind bars for the rest of his life.

Kelly will be sentenced in Chicago on Thursday of the following week.

Even with his current 30-year New York sentence, Kelly’s attorney, Jennifer Bonjean, stated in a filing last week that “Kelly would have to beat all statistical chances to make it out of jail alive.” She quoted statistics showing that convicts often live to be 64 years old.

At the low end of the sentencing guidelines range, she suggested a term of around 10 years, which she claimed could be served concurrently with the New York sentence.

Bonjean said that Kelly, who is Black, was singled out for behavior that white rock musicians have allegedly gotten away with for decades in her defense of the lighter sentence.

None have been charged, and none will perish behind bars, she wrote.

The Chicago case’s 25-year sentence, according to the prosecution, would be longer than even the recommended sentencing guidelines. Yet, they argued that it was fair to impose a lengthy sentence and direct that it be served only after the New York sentence.

Given Kelly’s behavior, “a consecutive sentence is perfectly acceptable,” the filing stated. Kelly’s purposeful and widespread sexual abuse of youngsters.

Six out of the 13 charges against the Grammy Award-winning singer were found guilty by the Chicago jury at the trial last year. But, the government was unable to prove that Kelly and his then-business manager corrupted the 2008 state child pornography trial.