The singer was sentenced to eight weeks behind bars last August after pleading guilty to dangerous driving and driving under the influence.
In an interview with BBC Radio 2, he said it wasn’t the first time he had broken the law, and that the conviction was 'karma'.
“I was assured I wasn't going to prison but I thought I was, and like I said, it was much easier to take because I felt it was deserved,” he said.
“This was a hugely shameful thing to have done repeatedly so karmically I felt like I had a bill to pay. I went to prison, I paid my bill. Remarkably enough, I know people must think it was a really horrific experience - it's so much easier to take any form of punishment if you believe you actually deserve it, and I did.”