Hulk is the world's biggest pit bull dog weighing nearly 80 Kilos.
The enormous dog is owned by Dark Dynasty K9s, from New Hampshire, which specializes in breeding some of the world's most fearsome guard dogs.
Hulk became an internet star after footage of him uploaded to YouTube racked up around 1.1 million in just one week.
American Pit Bull Terriers were created as fighting dogs by crossbreeding bulldogs, mastiffs and terriers. They are descendants of English dogs used to bait bulls and bears for cruel pit fights.
Although, it is illegal to own one, since they are considered very dangerous, but Dark Dynasty K9s insist their animals have calm, well balanced temperaments and would be suitable as family pets.