The 31-year-old’s confession comes after the band’s own mentor Louis Walsh previously hinted he might lose two of the boys.
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Former Girls Aloud singer Cheryl admitted she thinks that only half of the group has what it takes to make it big.
She told Digital Spy: “There are 4 or 5 of them that could make a great group, can really sing, good looking – the ingredients you need for a group.
“I do feel bad for them because they were put into a group, they cam as solo artists so they can all sing. They just didn’t have that extra [something].”
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Meanwhile X Factor choreographer Brian Friedman has hit back at reports Cheryl will be miming when she performs on the results show tonight.
She will be singing her latest single I Don’t Care, but it was claimed that it would be pre-recorded.
However Brian said: “She’s been singing in rehearsals live – she’s singing and dancing every time we run it.”
Speaking to a British magazine, Brian said he doesn’t think Cheryl has any reason to mime. He continued: “There’s a certain type of artist that, as a choreographer, you want to have in the studio if you’re doing dance performances.
“Britney [Spears] had that, Janet [Jackson] had that, Mya, Pink, Beyonce has it and Cheryl has that too. She’s in that category.”