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The former American Idol champ told Simon Cowell, who manages the British-Irish act, she wouldn't give the group any material unless she was impressed with their voices.
She tells Britain's Daily Star, "Giving away my songs is not something I do lightly. I'm very particular about that because my songs are like my babies. If I wanted it done I can sing it myself. I'm such a writer's snob.
"People have asked for songs and I'm like, 'I can't stand their voice, they're not singing my song.' When Simon Cowell put me forward to write for One Direction I said, 'Let me hear them first.'"
Clarkson was won over by the pop sensations and agreed to let them include "Tell Me A Lie" on their debut album Up All Night.
She adds, "I like the story of them, how they came together as a group. While I wrote the song for me, it didn't fit in the current album as I never want an album to sound like one thought.
"One Direction have worked so well in America as well as the U.K. because people love a story, plus they have this innocence about them that attracts people."
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