Celebrities who battled addiction: Zac Efron, Cory Monteith and more

9:13 AM, Sep 19, 2013   |    comments
  • Share
  • Print
  • - A A A +

(CNN) -- There are some celebrities who are well known for problems with drugs and alcohol. 

But still others flew under the radar with their issues.

*If you're viewing this on our iPad app, click VIDEO then choose photo option.

A lot of people were surprised to learn that Zac Efron had gone to rehab. Take a look at photos of these other celebrities that you might not have know battled addiction.

Most Watched Videos