R. Kelly is due to appear in court in Chicago on Tuesday on charges of recruiting girls and women to have illegal sex with him.
Prosecutors say Kelly should not make bail and want him to remain in federal custody as they say he’s a flight risk.
The R&B star, 52, is also accused of covering up the crimes by paying and threatening the victims and witnesses.
The musician was already awaiting trial for more than 20 other alleged sexual crimes – all of which he denies.
Last week, two separate federal indictments were filed against Kelly in Chicago and Brooklyn.
Combined, the allegations depict an organised effort from the star and his associates to recruit and transport underage girls over state lines for illegal sexual purposes, including the production of child pornography, as well as conspiracy to obstruct justice by destroying evidence and bribing or threatening witnesses.
Kelly’s lawyer, Steve Greenberg, said in a statement that his client was “aware of the investigations and the charges were not a surprise”.