It's a well-known fact: Morgan Freeman talks, people listen. But he's never sounded like this before. In a clip for the Science Channel first posted by Entertainment Weekly, America's narrator-in-chief indulges in a childhood game: inhaling helium to raise the pitch of his voice. There's no rhyme or reason to the short video — he doesn't actually explain the effects of helium, rather focusing on peculiarities in science — but it serves as a fantastic promo for the fifth season of the Science Channel's Through the Wormhole. Freeman, whose dulcet tones have previously graced movies like The Shawshank Redemption and March of the Penguins, has hosted the documentary series since 2010.