Miley Cyrus hasn't smoked marijuana in six months.<br />The 27-year-old has been very public about her marijuana use in the past.<br />The singer revealed she stopped smoking the substance after going through vocal cord surgery last year.<br />Cyrus said; "I had really big vocal surgery in November. had freaking four weeks where I wasn't allowed to talk."<br />Cyrus went on to say that she is enjoying being sober and "waking up 100%, 100% of the time".
