A prankster and serial pitch invader have admitted to being behind the loud porn noises that left Gary Lineker and his co-hosts red-faced during the BBC's coverage of the FA Cup.
Shortly after the Match of the Day's coverage for Liverpool's replay at Wolves started the embarrassing moaning noises began, leaving the pundits visibly confused.
The broadcaster cut away for a pre-match interview with Jurgen Klopp, but after returning to the studio the noises continued to disrupt the show for around 10 minutes.
Youtuber Daniel Jarvis claims responsibility for the porn noises and has posted a video of himself making calls to a hidden phone in the BBC's studio.
While Lineker told Newsnight that he found the prank funny but doesn't know why the BBC has apologized.
While the noises continued to play out Lineker remained composed and saw the funny side, as he joked: 'Would you stop making those noises, Danny,' directing his quip at Danny Murphy.
Moments after the game got underway, Lineker then tweeted to confirm that he had finally discovered where the noise was coming from.
'Well, we found this taped to the back of the set,' Lineker wrote alongside a picture of a mobile phone.
'As sabotage goes it was quite amusing.'
During the half-time analysis, Lineker said to Ince and Murphy: 'Harvey Elliott's goal was a screamer … which was not the only one we've had tonight.'
The topic was quickly trending on Twitter, where YouTuber Jarvo69 claimed to be behind the sex phone prank that left the pundits red-faced.
Daniel Jarvis, who is a serial pitch invader, tweeted: 'Yes, it was me that pranked the BBC Match of the Day with the sex Phone :) The video coming soon!!!! @BMWJARVO best prankster ever!!!!'
A short video accompanied the tweet which showed him behind the scenes at the Molineux stadium and the door of the BBC's studio.
A Livestream on his YouTube channel shows the prankster watching Match of the Day at home while repeatedly making calls to the phone taped to the back of one of the seats.
He proudly announced at the beginning of the video: 'Here we are, we have set up a phone with a loud sex noise in the BBC studios at the Wolves v Liverpool FA Cup replay.'
Jarvo69 watches the coverage with his phone held carefully in hand, waiting for the moment to pull off his practical joke.
Then he and his friends are seen breaking out in laughter while shouting 'that's me!'.
The video, which currently has 20,000 views, shows the jokester repeatedly dialing the same number until the noise stops playing out on the TV.
'He's found it, he's found it,' he shouted when the calls stopped going through.
Gary Lineker spoke about the mobile phone porn prank on Newsnight.
He said: 'When it started, I did recognize that sound. I think we've all been done with that when you open up a WhatsApp or something.
'It was so loud I couldn't hear anything that either Danny Murphy or even when I spoke to Alan Shearer. I could hardly hear what they said when the thing wa