Adorable Prince George photograph released to mark 2nd birthday

Prince George celebrates his second birthday today, and from the looks of this picture he couldn't be happier.

Kensington Palace has released an adorable photograph of the royal toddler, showing him in the arms of his father, Prince William, in the gardens at Sandringham House.

"Look who's turning two tomorrow," the Instagram caption reads.

The too-cute pic will be part of the series of official photos taken by renowned photographer Mario Testino following Princess Charlotte's baptism on Sunday, July 5.

"This photograph captures a very happy moment on what was a special day for The Duke and Duchess and their family," a palace spokesman said of the adorable image. "They are very pleased to share this picture as they celebrate Prince George's second birthday."

Earlier this month, the Duke of Cambridge opened up about fatherhood, admitting that his two children can be a handful. "There is a lot of responsibility, especially when George is around - he's been a little monkey," Prince William, 33, told reporters. "It's no more difficult than what everyone else has to do."