The confrontation took place at Metropolitan Correctional Center in Chicago, where Kelly is currently being held pending his federal trial for sex crimes.
He has four years left in his jail sentence.
“I was there. I don’t care what group of people come along and talk about this when they weren’t there. They don’t know.”
His prison sentence has yet to be announced.
JT served a year behind bars for credit card fraud.
The former gang affiliate will instead opt for 24/7 bodyguards.
A three-panel judge also reaffirmed the forfeiture of Shkreli’s assets, including his copy of Wu-Tang’s Once Upon a Time in Shaolin.
The 81-year-old comedian had spent the first four months of his sentence in special housing unit as he acclimated to conditions in prison.
The Ruff Ryder rapper replaced Ja Rule, who had previously been booked to perform.
The rapper was sentenced to a year in prison for tax evasion back in March.
The rapper has been incarcerated since November as he awaits his trial on federal racketeering charges.
McFarland pleaded guilty to multiple counts of fraud.