*Comedian/actor Chris Rock is in the middle of a federal investigation involving wire tapping and racketeering charges against Hollywood private investigator Anthony Pellicano.

      The P.I. is on trial charged with secretly taping phone calls between himself and some of his celebrity clients, one of which was Rock.

      Unfortunately for Rock,  the conversation, recorded in 2001, was posted on Huffingtonpost.com. (Scroll down to hear it here.)

      On the recording Rock says he's worried about a rape allegation that could damage his career.  The woman, identified as Monica Zsibrita, never filed charges and her palimony suit was dropped.

Anthony Pellicano

      Pellicano replies saying he will try to undermine the accuser's reputation.

      "That's why I want to blacken this girl up, totally," the man says on the recording. "I want to make her out to be a lying, scumbag, manipulative (expletive)."

      Rock was never arrested or charged in connection with the allegation.

      According to the Associate Press, prosecutors in the ongoing federal wiretapping trial against Pellicano and four co-defendants declined to comment about the 31-minute recording.

      It was unclear if it would be played for jurors during the trial. Rock's name appears on a prosecution witness list, but it also was uncertain if he would actually testify.

      Rock's press rep, Matt Labov has previously said the comedian hired Pellicano but never asked the private detective to do anything illegal.

      All five defendants in the case have pleaded not guilty to a variety of charges involving an alleged scheme to dig up dirt on celebrities and other clients for use in legal and other disputes.