By Hannah YasharoffOriginal Source: usatoday.com

Justin Bieber is speaking frankly for the first time about his past experiences with drug addiction.

In an episode of his documentary series "Justin Bieber: Sessions," released Monday, the 25-year-old pop star got candid about his past drug use, which began with smoking marijuana when he was "12 or 13."

The singer has previously opened up about a past of "doing pretty heavy drugs," but delved into much greater detail in the new episode. He began depending on...click here to continue reading