Cheryl and Liam Payne were planning to duet on 'Polaroid'.
Cheryl and Liam Payne
The former One Direction singer released the track earlier this month but Jonas Blue - who wrote the song and features on the single with Lennon Stella - has admitted it was initially conceived as a collaboration between the former couple, who split in June.
Jonas told the Daily Star newspaper: "About a year ago I said to my manager that I would love to do a collaboration with them both and I reckon it would have been 'Polaroid'.
"It would have been perfect as I knew when I wrote the song I could hear Liam's voice on it."
Jonas has also dismissed speculation Liam - who has 19-month-old son Bear with Cheryl - wrote the song about his break-up with the 35-year-old pop star.
He told the Metro newspaper: "This song actually stemmed from a Polaroid that I had of me and my girlfriend. It has been written that Liam wrote it about his break-up, but he didn't have any involvement in the writing.
"When I wrote this song, they (Liam and Cheryl) were still together. I got it over to him and he was like, 'I absolutely love it'."
While Liam, 25, and Cheryl are no longer together, the 'Fast Car' hitmaker's relationship with girlfriend Melinda is going well, and he credits the effort she makes to accommodate his work for keeping their union strong.
He added: "My girlfriend is super proud and happy, but it's tough trying to make it work. And if it wasn't for her it wouldn't work, because she flies out to see me wherever I am.
"She kind of gets it. We have been together for 11 months now."
Tagged in One Direction Liam Payne Jonas Blue