Getty

Before Diddy finds out how long he's going to prison, he's got some things to get off his chest ... and he's planning to say it in open court.

Friday's hearing in federal court -- where Diddy will be sentenced for his conviction on 2 counts of the Mann Act -- is a little more interesting now, because he wants to address the judge. In court docs, his attorney Teny Geragos says, "The sentencing proceeding holds significant importance for Mr. Combs. He wishes to appear before the Court, address Your Honor, and allocute in the most dignified and respectful fashion possible." Getty

They're also asking Judge Arun Subramanian to allow Diddy to wear street clothes, instead of his jail jumpsuit ... clearly wanting to look his best for the big speech.

Keep in mind, Diddy did not

See Full Page