The 65-year-old refuses to sign up to the social networking site as he knows he would get into trouble almost straight away, reported Daily Star.
"It would end my career. I'd be in prison after about two days. I mean, no, God almighty. Me and my big mouth, no thank you. That would be the end of the career," he said.
The singer also said he does not understand the latest technology.
"You won't see me doing a disco record or a dance record or anything like that, because I don't know how. I'm technically a Luddite. I have an iPad but I don't have a phone. I'm not great on a computer, I don't even have one.
"I write everything down - I come from a different era. I accept the change and I know that it is the future with the way it's going, but I don't know how to do it," he said.
John raises 18-month-old son, Zachary, with husband David Furnish.