COPS investigating Yung Filly are hunting a key witness who was reportedly with the YouTuber on the night he allegedly raped a woman.

The rapper, whose real name is Andres Felipe Valencia Barrientos, is set to be stuck in Western Australia for over two years as he waits to go on trial.

Officers are now carrying out their investigation into the alleged sex attack that happened in the early hours of September 28.

WA Police Prosecutor Julius Depetro revealed in court that cops still want to speak to a key witness as part of their probe.

He said: "There was another party that was part of the allegation who was in company with this accused."

It is not yet clear what relationship that person had to Filly and why they were with him during the time surrounding the allegation.

He paid a $100,000 (£50,000) bail fee and has to visit a police station each day and is banned from contacting the alleged victim.

Court documents have also revealed the moments leading up to the crimes police claim Filly committed.

The alleged victim, a university student, was with a friend in the VIP section of the Perth show Filly was performing.

She was said to have been drinking throughout the night until the early hours of the following day.

Once Filly had stopped performing and the club started to close the young woman is believed to have met up with the social media star.

The woman phoned her friend at around 5.31am - which detectives believe was immediately after the alleged assault, according to the documents.

Seamus Rafferty, Yung Filly's lawyer, claims the woman didn't mention any form of sexual misconduct in the short conversation to the pal.

WA Police Prosecutor Julius Depetro says despite the video, figuring out "what happened within that room will be the issue".

He also claims prosecutors have photographs of the alleged victim which show a "history of what we say is violent acts".

Police arrested the rapper in Brisbane, on Australia's east coast, and flew him six hours back across the Outback to Perth.

Footage showed Filly being escorted through Perth airport with his hands cuffed in front of him on Wednesday flanked by two officials.

Further footage shows the influencer - who landed his own BBC show called Hot Property in 2019 - being placed in the back of a car.

The internet star was rapidly dropped by several brands and companies following the allegations.

FootAsylum, the Football Association (FA), Heinz and ASOS are among the biggest names to part ways with the internet personality.

One of Filly's closest pals and fellow YouTuber, Chunkz, whose real name is Amin Mohamed, spoke out about the case for the first time last week.

In a clip posted to Instagram, he said: "Like everyone I've heard the reports coming out of Australia.

"While I understand many of you want my reaction on it, as this is an ongoing court case I hope you guys understand that I can't and won't be commenting on it publicly, so yeah I've just come on here to basically let you know the reasons as to why I can't. Love."

The pair worked together on their podcast The Chunkz and Filly Show and were due to put on a live show last week.

The show was quickly axed as organisers Troxy offered ticket-holders a refund.

It comes as The Sun spoke to a mum who has accused Filly of breaking her terminally ill son's heart after he failed to keep a promise he made to the youngster.

The YouTuber told Mason Greaves, 12, he was there to "support him" and challenged him to a game of Fortnite in a video.