Brian Williams is a very unflappable guy, whether he is seamlessly dealing with a fire alarm as it interrupts his nightly news report, or finding himself interviewing a tiny, one-eyed, shoe-wearing anthropomorphic shell.

That shell in question would be Marcel The Shell With Shoes On, the diminutive web sensation who -- along with its "parents" and creators Jenny Slate and Dean Fleischer-Camp -- was interviewed by Williams on his news magazine program 'Rock Center.'

As you can see in the video below, Williams asks Marcel some hard hitting questions, and the shell isn't afraid to hit right back.

[via BuzzFeed]