The suit involves the 1998 song "Black Chic, White Guy."
The suit also says Kid Rock invaded her privacy and intentionally inflicted emotional distress.
"Black Chic, White Guy" is on Kid Rock's best-selling 1998 album, Devil Without A Cause , which has sold more than 6 million copies.
Kelley Russell, the mother of Kid Rock's son, filed a lawsuit in Wayne County Circuit Court in November, saying the song "contains several graphic, inflammatory, untrue, hurtful remarks."
The two also are involved in a custody dispute in Macomb County Circuit Court.
Attorneys for Russell and Kid Rock are scheduled to exchange witness lists July 27, theDetroit Free Press said.
Russell dated Kid Rock, whose real name is Robert Ritchie, while both attended school inRomeo. She alleges that "Black Chic, White Guy" implicitly refers to her. She also sued AtlanticRecords, and Spin and Rolling Stone magazines. "Both stories [published by the magazines] contained harmful, false and misleading information about" Russell, her lawsuit said.
The defendants said they told the truth. They also said they did not name Russell. And they said they only disclosed information that was from the public record, publicly known and not "highly offensive to a reasonable person."
Kid Rock's New York attorney, Orin Snyder, said the rapper stands by his song.
"For centuries, artists have been telling their life stories in song, poetry and literature," he said.
"The law honors and protects this right and does not permit plaintiffs to censor artisticexpression by filing lawsuits. We are confident that the case will be dismissed."
Russell's attorney, David Robinson said the First Amendment would not protect the song. He cited a lyrical reference to an abortion the mother of Kid Rock's son had while in high school.
The song, which says the couple began dating when he was in eighth grade, says the girl was promiscuous, had three children with three men, was beaten up by a drug-dealing boyfriend and "had no man, no money and no clue."