DETROIT — Insane Clown Posse’s latest gig? A federal court.

It’s not a performance by the Detroit rap-metal duo, but arguments by lawyers who say Insane Clown Posse’s fans have been unfairly targeted by police.

A 2011 FBI report described the fans, known as Juggalos, as a “loosely organized hybrid gang.”

An appeals court in Cincinnati heard arguments Thursday, after a Detroit federal judge said the U.S. Justice Department isn’t responsible for how authorities use a national report on gangs.