On April Fools' Day, YouTuber But Without crafted one of the freakiest mash-ups, ditching the It trailer's Pennywise the Clown for the star of The Cat in the Hat. Both movies were unsettling enough on their own; putting them together is probably enough to scare even Stephen King.
Interestingly, But Without made another eerie Cat in the Hat video earlier this year, reimagining Dr. Seuss's classic tale as a horror film. Needless to say, turning the Cat into Pennywise is abundantly scarier. Check out the clip above and try not to float too.