The 50-year-old 'Careless Whisper' singer said he quit smoking cannabis and has been clean for over 18 months, reported Daily Mirror.
"Not at all. I've completely stopped. I haven't touched it for well over a year-and-a-half now," Michael said.
The star stayed in Pentonville prison in 2010 after a car crash while he was high on cannabis. He was put on anti-anxiety pill which he feels was more easier than he expected.
"Jail wasn't great. I just thought, get your head down and get on with it. It turned out to be easier than I was expecting because I knew I deserved to be there .. I was pretty overwhelmed by the love and support the fans showed me," he added.
