Simon Cowell is in awe of his fellow The X Factor star Cheryl Cole - because she's the only person he knows who hasn't succumbed to Botox.

The American Idol judge has long been targeted by rumors he's had the wrinkle-fighting injection and has finally admitted to undergoing the cosmetic treatment in a bid to turn back the years.

However, he was shocked to discover that Girls Aloud singer Cole, who sits alongside him on the British TV show's judging panel, is a natural beauty.

Cowell says, "I've had Botox. But then again, pretty much everyone I know has, except Cheryl Cole. I got a shock when she was sitting next to me on the panel and she frowned and her forehead actually wrinkled. I thought, 'Whoa! I haven't seen that in a while. A real frown. That's different.'

"To me, Botox is no more unusual than toothpaste. It works, you do it once a year - who cares?"

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(This news article provided by World Entertainment News Network)