Sir Elton John may quit music to become a full-time dad.

The 66-year-old singer - who, along with husband David Furnish, welcomed son Zachary into the world on Christmas Day 2010 (25.12.10) - says he will reassess his career once his little boy starts school as he knows how important it is to be there for him.

Elton told the BBC: ''While I'm feeling good, I'm going to keep working. When Zachary goes to school, that's another different thing.''

''I want to take him to school and I want to pick him up. I don't want to miss that part of his childhood.''

The 'Rocket Man' hitmaker also says he is dreading Zachary -who was born via a surrogate mother - finding out he only has two fathers and not a mum.

He said: ''It's going to be heartbreaking for him to grow up and realize he hasn't got a mummy. But he's so happy. I've never seen a more contented child. And you have never seen two more contented people as David and I.''

However, the couple - who married in a civil partnership in December 2005 - would love another child as they think it's important for Zachary to have a sibling.

Elton said: ''I'd love to have more children. I want Zachary to have a brother or a sister to go to school with him, and so that he can have someone to play with.''