Kanye West at court, says he's supporting Combs

Sean Combs' former personal assistant, Jonathan Perez, testified that he saw something he shouldn't have: a video of "Jane" -- a former Combs girlfriend who took the stand under a pseudonym -- having sex with another man.

Perez testified that Combs' videographer first discovered the video on an iPad. Perez testified that he went to Combs and then to chief of staff Kristina Khorram.

"[Khorram] said that in the future I should just bring it to her and she would communicate to Mr. Combs," Perez recalled on the stand. "I gave her the general gist of the video that it was 'Jane' and another man."

Six months later, Perez testified, Khorram brought the video up again because "she had gotten a call from someone outside the company talking about the video in some capacity." The jury heard his conversation with Khorram that she surreptitiously recorded.

"I just need you to tell me step by step and don't leave out a beat," Khorram was heard saying on the recording. "An outside person brought up something."

The conversation did not reveal who had approached the Combs team, but "Jane" testified that a male escort tried to extort Combs and "Jane" by saying he would release a video from a hotel night.

"It is out and I just need to know step by step where you found it," Khorram was heard telling Perez on the recording. "Don't leave out anything please."

Perez was heard telling Khorram on the recording, "I took the iPad, I went to the office, I saw what he was talking about, closed it."

Perez testified that another employee advised him to delete the video, but he didn't feel comfortable doing that.

Kanye West briefly watched his friend Sean "Diddy" Combs’ sex trafficking trial from an overflow room.

After arriving in a black Mercedes-Maybach sedan, West entered the courthouse in an all-white outfit and black sunglasses.

Like any other member of the public, he had to take off his belt, empty his pockets and surrender his electronic devices before going through a metal detector.

West was escorted to an elevator and taken to an empty overflow room on the 23rd floor of the courthouse. For about 10 minutes, West and his entourage were alone in the overflow room with four court officers. The rapper sat in the front row of the gallery, immediately in front of a monitor displaying a feed of the courtroom.

Charlucci Finney, a music producer and longtime friend of Combs, was also in the overflow room. Finney was seen pointing out elements of the courtroom setup to West, who watched the screen intently. West watched the beginning of the testimony from Jonathan Perez, a former personal assistant to Combs.

West was never able to enter the main courtroom where the trial is taking place. At one point during West’s visit, a member of Combs’ legal team showed up in an overflow room on a different floor, frantically looking for West.

After about 30 minutes, West quietly left the courtroom and exited the courthouse.

About a dozen newly sworn-in citizens were taking photos outside court when West left the building.

-ABC News’ Peter Charalambous

Kanye West departed court after about 20 minutes.

He did not make it into the main courtroom but was in the overflow room.

Kanye West arrived at the courthouse on Friday in the company of one of Sean Combs’ sons.

Asked by ABC News if he was at court to support Combs, the rapper nodded and said "yes."