In a stunning courtroom revelation that is shaking the entertainment world to its core, Sylvester Stallone has taken the witness stand in Sean “Diddy” Combs’ federal trial — and what he revealed has left the entire room in disbelief.

Breaking years of silence, the Hollywood action legend described a deeply disturbing incident he personally witnessed at a private Diddy party in 2010.

But what began as a moment of unease has now exploded into a full-scale scandal, implicating some of the music industry’s most powerful figures — including Clive Davis and, shockingly, a mention of Beyoncé.

Stallone testified about a 2010 mansion event in the Hollywood Hills, hosted by Diddy.

Describing it as one of the “weirdest, most uncomfortable nights” of his career, Stallone recalled witnessing Diddy threaten a young woman in a secluded corner of the estate.

The mood, according to him, shifted from glamour to something darker.

“He leaned in close to her face and said something no one should ever say to another person. She looked frozen. Everyone saw it — but no one said a word.”

He claimed other guests — including notable actors and music producers — turned a blind eye, and the incident was “brushed off” by security and Diddy’s team.

Stallone’s testimony then took an even darker turn.

He claimed the party was not just a gathering — but a gateway into what insiders called “freak offs”: elite, off-the-grid events involving celebrities, industry moguls, and psychologically manipulative environments.

“These weren’t just parties. They were planned, orchestrated, and everyone who walked in knew they had to play a role — or stay silent forever.”

He explicitly linked Clive Davis, the legendary music executive, to the network, claiming Davis was aware of — and involved in — organizing some of these events over the years.

He also mentioned that Beyoncé was known to attend, not necessarily as a participant in anything illegal, but as a complicit figure who chose silence over confrontation.

As Stallone spoke, Cassie Ventura, Diddy’s former partner who has been central to much of the case, was seen visibly emotional in court.

Her attorneys declined to comment, but those close to the case say Stallone’s revelations validate years of whispered rumors.

With Stallone’s testimony now part of the official record, federal investigators are reportedly expanding their scope to look at other high-profile figures and locations.

Sources suggest that more surprise witnesses are set to appear in the coming days — and more big names could be named.

This could be the biggest cultural reckoning Hollywood has ever seen.