Sir Elton John and David Furnish reportedly expecting a second child

A source told Thedaily.com: "He hired the same surrogate to make another baby. [She's now] in her first trimester."

Elton recently revealed he is sorry he waited until his sixties to become a dad and spoke out about how much he wants a sibling for Zachary but explained, "at what stage we don't know, but we definitely will. I don't want him to be an only child".

He said: "I think it changes everybody. It's the most wonderful thing that you could possibly go through.

"I regret a little bit that I didn't do it sooner, but he has changed our lives. Everything is about him now.

"He's gorgeous, he travels brilliantly, he so loves people, and it makes our lives - he's the icing on the cake.

"The first thing I do every morning is have breakfast with him. He shares my breakfast. Whatever I have, he wants.

"He has my boiled egg and I have his pineapple or vice versa. I sound like I'm the only person who has ever had a kid - everyone's been through this.

"But for me, it's an incredible difference to what life was before."