In 1987, Tom had a brief relationship with Katherine while he was on tour in the USA, after which she discovered she was pregnant.

In 1989, there was a fierce legal battle between the two, but after DNA testing a court ruled Tom was Jonathan’s father.

Since then it has been reported Sir Tom refuses to have a relationship with Jonathan, now 32, despite the boy calling on his father to reach out.

In 2008, Sir Tom spoke about Jonathan, and it is the only time he has spoken about it.

At the time, he said: “It wasn’t something I had planned.