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.
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.