Whitney Houston
For more than a decade, Whitney Houston has publicly (and sometimes embarrassingly) battled an addiction to cocaine and marijuana. In 2009, the singer seemed to have broken her addictions, speaking candidly about her former drug use as she attempted to stage a comeback. But last year, Houston went back into an outpatient rehab program for drug and alcohol treatment. However, in recent months, Houston’s health seems to be on the rise. Hopefully, her addictions won’t surface again.