Katie Waissel has laid into her 'X Factor' mentor, claiming she thought Cheryl "was better than this" after her admission she only took Katie to the live shows of the series in 2010 because she was 'quirky' and 'would make good TV'.
Writing in her autobiography, 'Cheryl: My Story', she said of Katie: "Simon had spent the past two years drumming into me that we needed acts who would be 'good TV'.
"When I saw Katie perform... I had to admit that she was... quirky, intriguing and busting to succeed.
"In short, she had the character and drive it took to withstand the pressure of the show, and so I put her through, even though she messed up when she sang in front of Will (will.i.am)."
After reading what Cheryl had said, Katie tweeted: "@cherylcole thought you were better than this. Shame I trusted you. you live and you learn."
Ouch! Cheryl, it's over to you.