Former One Direction star Zayn Malik seems to have fallen out with collaborator Naughty Boy after branding him "a fat joke" in an online rant.
The producer, real name Shahid Khan, put a track featuring Malik singing over an acoustic guitar online after he quit One Direction.
But today, Malik tweeted the musician saying: "You fat joke stop pretendingwe're friends no one knows you".
He is not the first person to fall out online with Naughty Boy - Malik's formerbandmate Louis Tomlinson called him "inconsiderate" after he published theacoustic track online.
Earlier this year, Naughty Boy told Heat magazine that Malik had been under intense pressure and was in a studio with him because he wanted to enjoy time with his friend.