The feud has reignited between Zayn Malik and Naughty Boy (real name Shahid Khan), with the music producer threatening to leak one of the former One Direction star's demo tracks.
One week after Malik's debut solo release, Mind Of Mine, Naughty Boy has hinted that the singer did not write his first single Pillowtalk, while also suggesting he would share the original version of album track Like I Would online.
The latest row began when Malik, 23, told a Twitter follower that Pillowtalk was the first song he had written for his album. In response Naughty Boy tweeted "LOL".
He then tagged producer brothers Make You Know Love (real names Anthony and Michael Hannides) and tweeted: "Credit where credit is due," suggesting that the producers were responsible for the song.
Naughty Boy then explained: "This ain't about me.. its just about giving credit to @MakeYouKnowLove for writing an amazing song, thats all.. bless. have a great day."
He said in a separate tweet: "Please don't make me leak the original #likeiwould ha," in reference to the bonus track on the deluxe edition of Malik's Mind Of Mine album.
Malik, who quit One Direction in March 2015, has previously opened up about the inspiration behind Pillowtalk and credited Make You Know Love for their involvement, saying in an interview with Los Angeles radio show Zach Sang And The Gang: "Basically, I wrote that shortly after I left the band. We wrote that song around the time that I was feeling these emotions, shall we say, and I feel like that's why it came out the way it did. I feel like in the vocal you can get a sense that I'm meaning what I'm saying."
The former boy band star fell out with Naughty Boy, 31, in July 2015 after rumours claimed that the producer was responsible for leaking the singer's No Type remix, which featured Krept & Konan. Announcing the end of their friendship, Malik tweeted: "@NaughtyBoyMusic you fat joke stop pretending we're friends no one knows you."
In an interview with The Guardian, Naughty Boy opened up about his fallout with Malik, explaining: "Our friendship was genuine, 100%. But then you have other relationships with lawyers and labels etc. I don't think we actually fell out over the lack of friendship or trust, I think it was external influences."