Sean "Diddy" Combs and his lawyers returned to New York federal court on Thursday to ask a judge to vacate his prostitution convictions or grant a new trial.
Judge Arun Subramanian adjourned the hearing and did not immediately rule on the defence's request.
The American music producer, who was accused of running a sprawling sex trafficking operation, has been jailed since his arrest last September. He was convicted in July on two counts of prostitution.
Combs' lawyers argue his convictions were a misuse of the Mann Act - a federal law that was passed to combat human trafficking and sexual exploitation of women.
Combs is due to be sentenced on 3 October.