updated 11/08/2012 AT 10:00 AM ET
•originally published 11/08/2012 AT 10:30 AM ET
The X Factor’s top 13 contestants (welcome back, Diamond White!) performed songs from movies Thursday night – hoping to earn viewers’ votes for the first time this season – but most of the drama came from Demi Lovato and Simon Cowell.
The two clashed almost right away after Paige Thomas’s highly theatrical performance of “Take My Breath Away.”
“The beginning was great but I think it needed to go somewhere … You don’t want to turn this into a karaoke competition,” Simon told Thomas’s mentor. “Madame,” he continued, referring to Demi, “could have used a little more imagination in terms of the production of the song.”
“I’m so sorry I let you down,” Demi said sarcastically. “You did so amazing. It was so beautiful.” Then to Simon she added, “Obviously everybody in the audience disagrees with you.”