Guitarist Eddie Van Halen came on stage during a Texas stop of Michael Jackson's 1984 tour to play on "Beat It," the Jackson hit that featured a solo by Van Halen. Now, questions about a guitar that the two supposedly signed have led to the cancellation of an auction of Jesse Jackson Jr.'s goods. Carlos Osorio /AP hide caption

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V ice President Joe Biden, left, and President Obama embrace following Biden's vice-presidential nomination acceptance speech at the Democratic National Convention in Denver, Wednesday, Aug. 27, 2008. Paul Sancya/AP hide caption

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