The `Acceptable in the 80s` hitmaker insists he has no further plans to sing at his shows and instead will focus on DJing and behind-the-scenes work with other artists.
He said: "From now on, I`ll be in DJ mode. I`ve stopped the live shows.
"I`m going to focus more on production and DJing and zero per cent of my time will go on singing.
"I`ll do tracks with people who can sing well - proper artists, proper performers."
Calvin, 26, also admitted one of the reasons why he has made the decision is that singing live terrifies him.
He added to Australia`s Herald Sun newspaper: "I`m not a singer. I`m not trained. Taking it onto the stage in front of people was terrifying. I got much, much better at it but I never lost the terror.
"And looking after your voice on tour is such a priority and such a nightmare. If I had a night out the night before a show it`d be awful and I`d feel for the audience. I`ll do some studio singing for sure, but never live. It`s not worth the risk for anyone, for the people in the audience or me, my pride."