Simon Cowell is reportedly sick of Louis Walsh winding people up.
The 'X Factor' boss is said to be questioning Louis' future as a judge after ten years on the ITV talent show because of his affect on fellow mentors Mel B and Cheryl Fernandez-Versini.
A source told Now magazine: "The three judges are barely speaking to Louis right now. Simon's sick of him winding everyone up and tensions have been mounting for weeks.
"Cheryl and Mel keep saying they're not sure they can put up with him for the rest of the series. Simon reminds them they only have until Christmas, but he also finds it hard not to lose his cool over Louis' attitude."
Louis came under fire recently after deciding to take the vote to deadlock, resulting in Paul Akister being sent home, but his feud with Cheryl has been going strong for years.
She said previously: "I accept him for what he is. But he's not someone I'd call tomorrow if I was in a crisis."