Brentford rappers and stars of TV sitcom People Just Do Nothing performed in what was described as the "worst Live Lounge in history" as they launched into an expletive-filled song live on BBC Radio 1.
Radio presenter Clara Amfo was praised by listeners after the performance divided opinion online - with many listeners left baffled.
While host Clara was inundated with tweets, other listeners were quick to shower the actors - who play pirate radio DJs - with praise, revealing it was all "jokes".
The 'DJs' from the show's Kurupt FM - a made up pirate radio station broadcasting from Brentford - were on the show to promote documentary series People Just Do Nothing, which is described by the BBC as a "mockumentary meet with the MC and the DJ who run Kurupt FM."
Nick Grimshaw gave us a clue at what was to come at the end of his Breakfast show, as he told Clara: "Good luck and don't lose your job."
It was everything we could have expected and more.
Clara began by saying: "I'm not going to tell any lies, I really thought it was going to be Kanye West," before admitting they had invited the controversial DJs on instead.
Beginning the segment, the manager began: "The name's Chabuddy G, aka the brown Casanova, aka the off-white Bruce Forsythe, aka the manager of Kurrupt FM - now Live Lounge listen to me..." And so it began.
Then characters MC Grindah (played by Allan Mustafa) and DJ Beats (Hugo Chegwin) took over, and performed a rap filled with shock statements.
It left listeners baffled, as they took the radio show to new levels of controversial. Clara began reading out tweets from listeners afterwards, and admitted most of them couldn't be aired.
Taking a break with a song, she was then forced to say: "Apologies if you're offended by anything in the last five or six minutes."
What followed was their own take on Stormzy's hit Shut Up (in video above), where they appeared to go into their own rant, ending with: "Shut up, you little freaks, just shut your tiny little mouths".
Clara once again apologised for the "language" during the show, after waving goodbye to the DJs.
Fans were quick to send their congratulations to Clara, after the show, as one wrote: "Nothing but respect for @claraamfo after having to deal with that!"
Clara replied: "I survived, promise!"
While another added: "'mazing. How you managed to stay composed is an award-winning achievement in itself! Hysterical 20minutes of radio!!"
One Twitter user commented: "Wtf is this s**t on live lounge!! Can't be real!"
But one wrote: "@KuruptFM on @BBCR1 Live Lounge was one of the best things I've ever heard on radio!! THE funniest dudes. iiiiiiiinside!"
And many were quick to point out they were clearly joking, as another added: "I'm cringing so hard at the amount of people who were just baffled by kurupt fm's live lounge."
What did you think?