This gymnastic dog has become a YouTube sensation after video emerged of it streaking down the stairs - doing a handstand.

It's owner, believed to be from Philadelphia, had no idea of her pet's hidden talent until she tried to dress it up in a pair of Santa Claus trousers.

But before she'd managed to pull the trousers up, the acrobatic pooch is distracted by someone at the foot of the stairs and scoots off on his front paws.

The poster writes: 'It was Christmas day so I threw a pair of Santa pants on my dog. He was fine walking around but when he ran down the stairs to greet someone, something amazing happened.'