In October of that year, engineer Michael Ashby, posted a picture of his computer screen on his Instagram Story and the file name 'Cardi B ft Beyonce demo' clearly on display.
He was then forced to apologise for the leak, but Cardi denied she had ever met him and that the song even existed.
However, a snippet of the song, believed to be called 'Wet', was leaked online.
Producer J White Did It - who co-produced Cardi's breakthrough hit 'Bodak Yellow' - has since claimed the track was definitely made, but that the pair decided to scrap it after the leak.
In a new video interview posted on social media, J - who has since teamed up with Beyonce and Megan Thee Stallion on their 'Savage' remix - explained: ''I was just as giddy as everybody else.
''I was sitting there just waiting, looking on the internet then it leaked.
''Bro, three years ago I had a Beyoncé play with Cardi and that kinda went sour because it went viral that they was doing a song together and that cut out
''This time the song leaked before the song came out ... But listen, that song came out when I say I sat like this [in silence] For like, 10 minutes.''
Cardi and Beyonce first met when the 'Press' rapper performed at her husband Jay-Z's Made In America festival in August 2017.
And the pair's fans demanded the 'I Like It' hitmaker and 'Crazy in Love' singer team up on a track after a picture of them at the event went viral.
Remembering the iconic Toots Hibbert (1942-2020).
'The Great Escape' was released on this day (September 11th) in 1995.
We were actually quite excited about Marilyn Manson's WE ARE CHAOS. The question is whether or not we were sorely disappointed...
World Suicide Prevention Day is the day to remember some of the world's greatest artists.
Few bands reach the legendary status of of the greatest rock 'n' roll band in the world.
With his forthcoming album 'Heavy is the Head' set for release this December, Stormzy has dropped an animated video for a new single entitled...
It's time to start letting women be empowered by their sexual attitudes.