Australian Today Show host Karl Stefanovic wasn't prepared for this particular difficult talk show guest.

The internet's arguably most famous feline, Grumpy Cat, was invited for an indepth interview, but showed herself unimpressed with Stefanovic's interrogation.

The host grilled his guest about her fame, her upcoming book, and about Australian politics; all questions she stoically frowned upon. (She is a cat after all.)

Stefanovic bravely played along for a while before cracking up after the cat pulled a particularly grumpy face when Australian opposition leader Tony Abbott was mentioned.

Grumpy Cat rose to internet fame last year after Bryan Bundesen, the brother of Grumpy Cat's owner, Tabatha Bundesen, posted some pics of the cat (real name Tardar Sauce) on Reddit.

"It was an accident," Bundesen said. "We thought it would get some laughs, with the Internet liking cats. And it just kept going."

There's no doubting Grumpy Cat's star power:

The official website attracts more than 1.5 million visitors a month and the official Facebook page has more than 1.1 million likes.

On top of that Grumpy Cat was voted Meme of the Year Award at the 2013 Webby Awards, named most influential cat of 2012 by MSNBC, has appeared on news shows and in magazines around the world and made a small fortune from merchandising deals.

She is now set to appear in her own movie.