Pop superstar Michael Jackson's lawyer fears alleged anti-Semitics comments the singer made in taped voicemail messages could damage his child custody battle with ex-wife Debbie Rowe.

Jackson is reportedly heard calling Jews "leeches" in messages he left for a former advisor. Critics also accuse him of singing, "Jew me, sue me, everybody do me, kick me, kike me," in the track THEY DON'T CARE ABOUT US.

The accusations have already caused Jackson massive embarrassment and cost him the friendship of spoon-bender Uri Gellar.

Now his Jewish lawyer MICHAEL ABRAMS fears it may cost him custody of PRINCE MICHAEL, eight, and PARIS, seven, his children with Rowe - in a forthcoming hearing in front of private arbitrator, retired judge STEPHEN LACHS.

According to website TMZ.com, Abrams wrote in secret court documents that the comments may work against him.

In previous documents, Abrams reportedly wrote, "Judge Lachs is Jewish, as am I. He has made me aware of this in the past and I understand Judge Lachs' concern about anti-Semitism."