United Kingdom, Aug. 20 -- John Stamos has marked his 63rd birthday by continuing his tradition of posting a sexy nude selfie.

The actor took to his Instagram page to share the black and white snap, which featured him without any clothes on.

In the picture, he held his phone up in front of his face, while showing off his impressive physique.

John narrowly avoided a full frontal mishap with the snap, which he cut just below his hip bones.

He captioned the snap with a simple "63".

John's fans were quick to comment on the picture, with many making references to his Full House character Uncle Jesse.

One sighed: "Now Uncle Jesse."

As another commented: "Uncle Jesse, why are you doing this to us?!"

A third added: "63 is the new 36."

Wh...