By Rebecca Lewis @RebeccaSLewis
Scroll down for the full story
Videographer / Director: Mike Christian
Producer: Rebecca Lewis, Chloe Browne
Editor: Sonia Estal
Elvis takes after his namesake and at his heaviest weighed a hefty 38.5lbs (17.5kg) – the weight of a healthy three-year-old boy.
The seven-year-old European short hair in Dortmund, Germany, is now on a strict diet in a desperate bid to lose the weight.
The miserable moggy is so obese it can only crawl a few steps before needing to take a rest.
And if he doesn’t shift the weight soon the feline could be heading towards the pet cemetery.
Foster carer and animal charity volunteer Katrin Hessbrügge, 34, said: “[Elvis is] definitely the fattest I have ever seen. I think that Elvis is the fattest cat in Germany if not worldwide.
“Being overweight is bad for a cat or in fact for any animal. The inner organs are over strained and the muscles can't hold the weight. He can't get up and walk around and his back is sagging.
“In the worst case Elvis, or in fact all animals would die with such problems.
“We want to prevent this by all means by helping him to lose weight.”
Elvis first came to the attention of the animal charity Arche 90 five years ago when he weighed 31lb (14kg).
After a year-long rigorous diet and exercise regime he dropped ten pounds and was placed in a home – but rapidly ballooned.
It is not known what type of conditions Elvis lived in before he was placed in the charity’s care.
He was returned to the charity in late January and tipped the scales at an astonishing 38lbs.
But a careful diet – which includes weighing each meal – has meant he has shifted two pounds.
Katrin said: “He was in a bad state. Elvis could hardy walk and had to more or less crawl around. His muscles were not strong enough to carry his weight.”
Now back in the care of Katrin, who looks after other cats in need of a home, Elvis eats a low carb-diet and has two insulin injections a day to control his diabetes.
Unlike other cats who can climb trees, jump from large heights and chase animals, Elvis can only crawl on his legs around the two-floor apartment.
And catching a ball or playing with a feather is out of the question.
But despite his limited movement, the plump pussy loves human attention and hugs.
Katrin said: “Elvis is a fun cat that likes to cuddle. He is in a way a clown who conjures a smile on your face and lets himself be stroked by everyone. He likes to be combed and is just a big sweetheart.
“Elvis is grateful for any kind of affection he gets.”