MADONNA looked exhausted in one of the last photos taken of her before she was rushed to the hospital. The superstar singer spent several days in the intensive care unit after suffering a medical emergency. Madonna was working grueling 12-hour days "strenuously rehearsing" for her tour for weeks before her hospitalization, Page Six reported. “She had been putting in 12-hour days,” an insider close to Madonna's tour production told Page Six. 15 Madonna was preparing for a new tour at the time of her hospitalization Credit: Instagram/Madonna15 The singer has had a history of health troubles Credit: Instagram/Madonna