R. Kelly is requesting to be released from jail, alleging a murder plot by prison officials who he says tried to a solicit another inmate to kill him.

Kelly’s lawyers say in a motion that prison officials hatched a plot to get an inmate to kill him. The filing is the latest bid to undo his 30-year sentence for sex crimes and racketeering.

Lawyers for imprisoned R&B superstar R. Kelly claim they have uncovered evidence of government wrongdoing and that the Chicago-born singer’s life is in danger.