THE world has had its first glimpse of the new Royal baby boy.

The Duke and Duchess of Cambridge told the world's media they were "still working on a name" and revealed William had changed the first nappy.

Kate gave birth to a baby boy weighing 8lbs 6oz at 4.24pm on Monday.

The Duke of Cambridge said: "He's a big boy and he's got a good pair of lungs on him, that's for sure. We're still working on a name."

The Duchess of Cambridge added: "It is very emotional. Any parent would know what this feeling feels like. It is a special time for any parent."

The baby was due on July 13 but was finally born nine days later at St Mary's Hospital in west London.

William added: "I'll remind him of his tardiness when he's a bit older.

Referring to his wife, he joked: "He's got her looks thankfully."

Asked about nappy-changing, Kate said: "William's done the first nappy already."

The couple returned into the private Lindo Wing of the hospital and placed the child in a car seat, before coming back out.

William then placed the baby into a 4x4 vehicle before driving his family away towards to Kensington Palace.