Elton John has been on a spending spree for his newborn son

The flamboyant rocker – who along with husband David Furnish has became a father to newborn Zachary Jackson Levon Furnish-John through a surrogate mother - took delivery at his Los Angeles mansion of a variety of goods, including a state-of-the-art designer cot called a MamaRoo.

The egg-shaped MamaRoo chair simulates gentle rocking in five different styles, including car ride, kangaroo and tree swing.

A source told the Daily Mirror newspaper: "There was much excitement at the John-Furnish household. They are getting the house kitted out for Zach and are making sure he has everything he needs. They love him dearly. He is already possibly the most spoiled child in the world."

Elton, 63 and film producer David, 48, became parents on Christmas Day (25.12.10), with Elton named as father and David as Mother on an electronic copy of the birth certificate.

The pair have did not take long to chose the name for their son, despite studying books of possible monikers.

Elton explained to UsMagazine.com: "Zachary is a gorgeous little baby and we are so proud of him.

"A friend gave us a book of baby names, and we started to flick through it, but we have always loved the name Zachary and kept coming back to it. In the end, we looked at each other, and put the book back on shelf, and said, 'This is it!' "

No details about the couple's surrogate mother have been released, although it is thought the woman was not the biological mother, but carried a donor egg.

The whole process is thought to have cost the couple £646,000 in legal fees, clinic fees and payments to the women involved.