John Lennon may not have been what you thought he was, depending on who you are - and a new book about the singer reveals just that.

'John Lennon: The Life' is a new book that's set to be released next month by Beatles biographer, Philip Norman, but people are shocked over his claims and allegations.

Norman is claiming that John Lennon wanted to have incest sex with his own mother, and also wanted to have gay sex with Paul McCartney.

The Sun UK reports: The biography, with which both collaborated, says that John wanted to form a gay relationship with Macca. It also accuses the legendary singer of fantasizing about having sex with his own mother....A pal said: "Both Sir Paul and Yoko are extremely angry and upset."