For a brilliant new advert for season five of his widely praised series "Through the Wormhole" on The Science Channel, host Morgan Freeman skews what's possibly his greatest trademark: his voice. 

"In unusual situations," he says before inhaling a breath of helium, "you don't always get what you expect."

What results is the transformation of a voice akin to a warm fire on a dark cold night to something along the lines of the little brother to the Wicked Witch of the West. It's hilarious - and thankfully, temporary. 

Check out the video below. "Through the Wormhole," which explores some of the deepest mysteries of the existence, returns to The Science Channel on June 4th. 

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Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

Morgan Freeman inhaling helium is today's greatest moment ever
Host of the Science Channel's 'Through The Wormhole' shows us how you don't always get what you expect.