But the witness struggled to come up with examples.
"Besides his wives?" asked Joe Marcus, a witness for the defense. "He has friends. Elizabeth Taylor. ... I'm drawing a blank on a few of the names. ... There were — other women."
When prosecutor Gordon Auchincloss pressed him for names, Marcus said: "Liza Minnelli has been there — they seem to be good friends."
"OK, so we're up to two," Auchincloss said, raising an objection from the defense.
Marcus, an 18-year employee, was called by the defense to counter former ranch employees who testified against Jackson. Jackson, 46, is accused of molesting a boy and conspiring to hold the youngster's family captive to get them to rebut a damaging documentary.
Marcus testified that he was never ordered to hold the family members captive and that they seemed excited to be there.
He explained, CBS' Teri Okita reports, that the accuser and his younger brother had been destructive and unruly, taking Jackson's SUV out for joyrides on the ranch. The directive was meant to keep them from driving off the property, Marcus testified, but it never implied that the boys should be held against their will.
He said he did not want them taking the vehicles onto the open road. Nor did the boys complain about wanting to leave, Marcus said.
"Did you ever receive any instructions from anyone to hold the (family) against their will?" Jackson attorney Robert Sanger asked.
"No," Marcus said.
Prosecutors also claim Jackson associates planned to send the family on a one-way trip to Brazil. But Marcus said the family never objected to the trip and only wanted to know where to have passport pictures taken.
Under cross-examination, Marcus admitted he lied to law enforcement officials during a 2003 search of Neverland when he said he had no knowledge of Jackson sharing his bed with children.
At one point during the intense questioning, Auchincloss said to the witness, "You keep looking at Mr. Jackson. Why is that?"
The defense raised an objection and the judge sustained it. Auchincloss then asked Marcus if he was a loyal employee to Jackson. He answered, "Yes."
Auchincloss also asked whether Marcus knew that Jackson had adult materials at the ranch. Marcus said no, but acknowledged that dolls in bondage attire were kept on Jackson's desk. He called them "artwork."
"Do you think it's appropriate for children to be exposed to these?" Auchincloss asked.
Marcus paused and quietly said no.
Meanwhile, the big question is when a host of celebrities will begin to take the stand on the pop star's behalf.
The prosecution claims that actor Macaulay Culkin was molested by Jackson in the 1990's, reports CBS News Correspondent Steve Futterman. Culkin has publicly said Jackson did nothing wrong, but it's unclear if he will say that on the witness stand under oath.
"It's a pretty good bet that he will be here on Wednesday," said CBS News Consultant J. Randy Taraborrelli. "He does want to testify on Michael Jackson's behalf."
Culkin may be only the first of a parade of celebrities testifying on Jackson's behalf.
"People like these celebrities," says CBSNews.com Legal Analyst Andrew Cohen. "They're coming in out of the goodness of their heart to tell their story, and if prosecutors beat up on them, that only helps Jackson."