We thought this was just going to be a fight between the 1D singer and the producer. But everything changed when Louis responded to one of Naughty Boy's disses, mockingly calling him an "in demand producer."
In response, Zayn told the 1D singer to get a life!
Excuse us while we go freak out in a corner — we can't believe that he would say something like that. Louis and Zayn even have matching tattoos. They were supposed to be brothers!
Can you believe Zayn would say that to Louis? Tell us in the comments!