“American Idol” Season 7 winner David Cook is single again.
A source close to the star confirmed he and fellow “Idol” alumni, Kimberly Caldwell, have broken up.
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David and Kimberly, both 26, began dating not long after he won “Idol” in Spring 2008.
“American Idol” Season 8 returns on Tuesday night at 8/7c on Fox.
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