Katherine Heigl talks to David Lettermen about using an electronic cigarette.

 

 

Jeremy Piven and Mel Gibson were seen at a Hollywood party using electronic cigarettes.  Mel Gibson has been known for being a traditional cigarette smoker, it looks like he’s finally been able to quit with the use of an electronic cigarette.

 

The Huffington post has caught multiple celebrities vaping on electronic cigarettes. Click here to find out which celebrities are caught in the vapor craze!