(Or, if we're wrong, I guess that would be an April Fools' Day prank of its own ... Print out pictures of celebrities or cartoon characters and tape their faces over the faces of your family ...

Adult Swim's April Fools' Day pranks are a chaotic tradition that ... It's a yearly staple that viewers have come to expect from Cartoon Network's late-night surrealist comedy block.

that launched perhaps the most infamous April Fools' Day prank in Seattle history and sent many in Washington state into a panic. "A lot of people wanted us fired," John Keister, host of KING 5's ...