The 30-year-old singer, who is the wife of Stockport County footballer David Poole, wowed the judges with a rendition of Miley Cyrus's 'The Climb'.
Poole won a standing ovation from the audience for her performance and the judges - Contostavlos, Gary Barlow, Kelly Rowland and Louis Walsh - heaped praise on the wannabe popstar, according to the Manchester Evening News.
"I can see you in the final," said Contostavlos.
Barlow added: "That was absolutely spectacular. I would buy your album right now. There is so much possibility here, I'd take you in my category right now."
The X Factor auditions continue in July in London, Cardiff and Liverpool.
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