Elton John has mother's milk bought to baby Zach by FedEx

Once upon a time he might have had fresh flowers or fine wine shipped to his door from miles away.

Now Sir Elton John�s priorities have changed � if not the extravagance.

Since becoming a father, the singer has had breast milk for his four-month-old son Zachary delivered to his home by courier service FedEx.

Happy families: Elton John with four-month-old Zachary

In charge: The 64-year-old singer looked delighted to be burping his little baby

Pucker up: Elton John kisses the head of baby Zachary

In an interview broadcast in the United States, the 64-year-old revealed the lengths he has gone to to ensure Zachary is fed on milk expressed by his biological mother, who acted as a surrogate for Sir Elton and his partner David Furnish, 48.

Sir Elton told talk show host Barbara Walters: �[Zachary�s biological mother] has been providing him with breast milk.

�We have the breast milk FedExed from where she is.�

In the UK, only a third of babies are exclusively breastfed when they are one week old, dropping to 7 per cent by the time babies reach Zachary�s age.

Most mothers favour artificial alternatives, such as milk formula. The most recent figures, from 2005, show that 53 per cent of babies are fed exclusively on such substitutes at some point between four and ten weeks of age. Sir Elton and Mr Furnish became parents on Christmas Day.

The couple are thought to have been present when Zachary arrived weighing 7lb 15oz at a Beverly Hills hospital and have so far been bringing up their baby in California.

In the interview with Miss Walters, Sir Elton is shown burping Zachary and cuddling him before singing him a lullaby.

He sings: �I love my little boy, he�s my little pride and joy. He�s the most gorgeous little bubba in the world.�

The star then kisses Zachary�s head before adding: �Yes you are, you are a gorgeous thing.�

Sir Elton, who has been with Mr Furnish for 17 years, recently revealed the inspiration behind their son�s full name, Zachary Jackson Levon Furnish-John. He said: �Zachary is one of my favourite names, and David�s. And one of our favourite churches in Venice, where we have a home, [is] called San Zaccaria.

�It was John the Baptist�s father�s name and John the Baptist was born three days before Jesus Christ.

�Jackson is a name I�ve always liked and David�s dad is called Jack and it�s an old English name that means son of Jack.

�And it was just going to be Zachary Jackson and then as he was born on Christmas Day, and [my] song Levon says �he was born a pauper to a pawn on a Christmas Day�, I chucked that in for a bit of rock star influence.�