Elton John son 'to have paternity test'

Sir Elton John has confirmed that his son with David Furnish, born via a surrogate in December, will undergo a DNA test to discover which of them is the father.

The 'Rocket Man' singer and his longterm partner welcomed Zachary into their family on Christmas Day 2010, but neither are aware of the identity of the 3-month-old's biological father, as they both contributed sperm samples to the fertilisation process.

Speaking on Friday's edition of ABC news show 20/20, John stated that the paternity test was being taken out of necessity, and insisted that the results would not change the dynamic at home.

He said: "Zach will have to know for his medical records. If it's David, I'd be very proud. It wouldn't matter to me - and vice versa."

The 64-year-old also revealed how Zachary's mother had helped the couple weather the early days of parenthood.

He revealed: "The baby's been brought up in Los Angeles for the first four months, so we've had the breast milk 'FedEx-ed' from where [the surrogate mother] is to Los Angeles every day."

John previously claimed that he and Furnish will give Zachary a "solid, old-fashioned childhood".