Amy Winehouse

On June 23, 2008, Winehouse oft-quoted father Mitch confirmed that doctors say the singer shows signs of emphysema. Doctors have warned Winehouse that if she continues to smoke drugs, she'd not only lose her voice, but "it will kill her," as only 70 percent of her lung capacity remains.

• Up All Night With Amy Winehouse
• Behind the Winehouse Story: Video Interview With Claire Hoffman