A high school principal pranked her 11th-grade class on April Fools' Day. CNN's Jeremy Roth has more. Scientists spot ...

Terrifier’s Art the Clown star David Howard Thornton was causing a ruckus on the set of the new Disney themed horror movie ...

Day likely had its origin way back in the 15th Century. But today it's become more of a day for marketing mischief by big brands.