Angelina Jolie revealed in the New York Times Tuesday that she had a preventive double mastectomy after learning she carried a gene that increased her risk of developing breast cancer.
Like Jolie, Sharon Osbourne was not diagnosed with breast cancer but had a preventative double mastectomy.
Christina Applegate was diagnosed with breast cancer in 2008. Applegate, who is currently filming Anchorman 2, had both her breasts surgically removed to avoid a recurrence of cancer.
Olivia Newton-John was diagnosed with breast cancer in 1992 when she was 44. Doctors treated her cancer with chemotherapy and a modified radical mastectomy.
Television personality Giuliana Rancic, who was diagnosed with breast cancer in 2011, tweeted in support of Jolie: "Proud of her for using her incredible platform to educate women."
Cynthia Nixon, who played Samantha on "Sex and the City," was diagnosed with breast cancer in 2006. She served as the official spokeswoman for the Susan G. Komen for the Cure Foundation in 2009.
Sheryl Crow beat breast cancer in 2006. She applauded Jolie on Twitter, saying, "I commend Angelina Jolie for her courage and thoughtfulness in sharing her story today regarding her mastectomy. So brave!"
Comedian Wanda Sykes was diagnosed with breast cancer in 2011. She revealed the news during an interview on "The Ellen DeGeneres Show" later that year.
Kathy Bates had a double mastectomy after she was diagnosed with breast cancer in 2012. She also survived ovarian cancer nine years before her bout with breast cancer.