Naughty Boy thought Zayn Malik was hacked when he sent him an angry tweet.
The former One Direction singer tweeted his friend and producer calling him a "fat joke" and Naughty Boy admitted once he found out it was real, he was quite upset.
He told Fuse.tv: "It sounded like one of the things the little girls who send me hate would say. I can deal with what he said but he knows the hate I've had to endure for him is the bit that upset me. That's not how I know Zayn to speak, even face to face. I definitely thought at first that he had been hacked."
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Malik originally wrote: "@NaughtyBoyMusic you fat joke stop pretending we're friends no one knows you.