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Anastacia, known for pop hits such as 'I'm Outta Love' and 'Left Outside Alone,' revealed on Feb. 27, 2013 that she has been diagnosed with breast cancer for the second time in 10 years. As a result, she canceled an upcoming European tour. On Oct. 1, she revealed that she was 'currently in the final stages of recovery after undergoing a double mastectomy.'
(Pictured: Anastacia appears in the 2012 music video 'Best of You.' / Anastacia appears in the 2004 music video 'Left Outside Alone.')
(BMG / Sony Music Entertainment Inc.)