Cheryl Cole puts on her big hair for a big new job... but fellow X Factor judge LA Reid has never heard her music

Whatever the reason her huge bouffant 'do certainly made an impact as she arrived for the first day of filming the U.S. X Factor.

But while she may have worked hard on her 'look', as an unknown in the States Cheryl is fast finding she will have to work hard to prove herself.

Legendary music producer LA Reid told MailOnline he hadn't even met Cheryl. And when asked what he thought of Simon Cowell's choice he replied: 'I don't know man. I've never listened to her music.'

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