Kelly Clarkson won't let new contestants use her songs on the television show.

Clarkson's spokesman insisted it's nothing personal.

But the stance prompted a public scolding from judge Simon Cowell, who said on Tuesday: 'By ignoring the show, you're ignoring the audience who put you there.'

Clarkson, who has become a major star since her win, is not allowing her songs to be licensed for other uses, said a Sony BMG spokesman. And 'it has nothing to do with Idol'.

Her hit, Since U Been Gone, earned both sales and critical respect. And her album, Breakaway, scored a Grammy nomination for best pop vocal album.

Cowell said he hoped Clarkson would change her mind.

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