And if truth be told, they've both got a great set of lungs on them!
Prince William Talks Fatherhood
Congratulations Prince George!
Take a look at all the pictures of Prince George's christening and meet the little Royal's godparents.
Watch Prince William play polo and talk fatherhood in his first public appearance since Prince George was born.
He might have scored the winning goal in the Audi Polo Challenge, but his mind was elsewhere.
'I was in baby mode out there, thinking about nappies,' he told Sky. 'I wasn't really in the zone!'
The new father was given a mini mallet for his baby boy.
Watch the video below:
Fancy treading the boards? Snap up a pair of tickets to these unmissable and exciting musicals or shows touring the UK...