Celebrities such as Sheryl Crow, Christina Applegate and Richard Roundtree have fought against breast cancer.
Actress Christina Applegate was 36 when she discovered she had breast cancer in 2008.
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The following five celebrity urban legends will likely live on long into the future, despite the fact that none of them is remotely true.
JASON REDMOND / Reuters
With Bradley Cooper returning to the big screen for "The Hangover Part III," take a look back at the actor's career so far.