Hafbor Bjornsson, otherwise known as "The Mountain" from Game Of Thrones, shows off his strength live on air.

What do you do when you meet the 2.6-metre-tall, 182kg strongman Hafbor Bjornsson? Why, you ask him to hoist you over his head, because that's the stuff dreams are made of.

And that's exactly what Today Extra Show co-host David Campbell got when Hafbor Julius Bjornsson – otherwise known as "The Mountain" on hit show Game of Thrones – was invited into the Today studio this morning.

Bjornsson, who’s in Australia promoting the use of re-usable water bottles, got more than he bargained for when Campbell starting fawning over his monstrous size, and wanted to compare physiques.

Campbell, who's no small man himself standing roughly 180cm, looked absolutely tiny next to Bjornsson, who promptly picked him up – and then pressed him overhead like he weighed nothing at all.

It's all in a day's work for the hulking Icelandic strongman, who has to eat a staggering 10,000 calories of food every day just to maintain his bulk. When asked if he clears out restaurant kitchens with his enormous eating plan, Bjornsson said he actually preferred to cook.

"I make myself breakfast and lunch every day. Obviously when you're eating eight times a day you have to cook otherwise you'd go crazy," said Bjornsson.

To maintain his superhuman strength, Bjornsson spends three hours in the gym every day and has spent years throwing around the iron, presumably in preparation to throw around a few Australian TV presenters.

And if you're looking to build a Thor-sized physique yourself, be prepared to spend a lot of time in the gym.

"I've trained all my life and I grew up as a farmer, which involves a lot of hard work," says Bjornsson.

"I've been seriously training in the gym for over seven years."

Just as well, because this half-giant, half-human Icelander has made one Game of Thrones fan very, very happy.

"That's the best thing that's ever happened to me in my life," gushed Campbell.

RELATED: The 10,000 calorie diet of The Mountain puts your bulking to shame