Simon Cowell Confirms X Factor USA Issues
SiCo tweets the acts will sing again after technical difficulties...
The music mogul took to Twitter to address the problems, after viewers noticed a graphics error - meaning the wrong voting numbers were flashed on screen.
Cowell wrote: "A lot of you noticed there were some problems with the voting numbers at the end of the show tonight...you were right!
"There was an issue so everyone has to sing their save me song live tomorrow and America will vote on that performance."
He continued: "Mistakes happen. But now I have 24 hours to prepare my groups for tomorrow night. Let's hope they all deliver.
"Now they will understand what pressure means."
SiCo - who is mentoring the groups on this year's series - went on to add: "It's happened once before. It's live tv. You have to deal with it, tough for the contestants though. But you have to dig deep and deliver.
"And for a couple of contestants they must be thanking their lucky stars they get to sing another song tomorrow."