The X Factor’s Rita Ora called fellow judge Simon Cowell “rude” as the pair clashed over contestant Katie Coleman during the Six Chair Challenge.
“You were better the first time, but if it was me, I would give you a chair,” Cowell said after her song.
The crowd believed this was a positive assessment and cheered, but he then clarified his statement.
“Not one of those. I’d give you a chair at home,” he added.
Cue boos from the Wembley audience and stunned looks from the panel.
“That was just rude. Simon, if you would just like to mind your own business and wait until your category comes up,” Ora said to the TV mogul.